USCGC Clarence Sutphin Jr. May Have Intercepted Kamikaze Underwater Drone Parts Bound for Houthi

“US Coast Guard / CENTCOM released photo of weapons seized aboard an Iranian dhow…The seizure included UUV and USV components. The annotations, highlighting possible UUV parts, have been added.”

As reported earlier, on January 28,2023, USCGC Clarence Sutphin Jr. intercepted an arms shipment bound for Houthi controlled areas of Yemen. Somehow, I skipped over an aspect of the report.

 The boarding team discovered over 200 packages that contained medium-range ballistic missile components, explosives, unmanned underwater/surface vehicle (UUV/USV) components, military-grade communication and network equipment, anti-tank guided missile launcher assemblies, and other military components. (emphasis added–Chuck

H. I Sutton at “Covert Shores” amplifies on the story, identifying the likely UUV as a one-way attack system. An earlier post provides a bit more detail about the likely weapon.

It appears this weapon is slow, so it is more likely to be used against vessels that are anchored or moored. It might also be used against port infrastructure. It could be launched and/or controlled from any number of innocuous looking craft. Because the effects of an underwater explosion are amplified by the non-compressible nature of water, this weapon could cause very serious damage.

In addition to the Houthi, Iran and any of its client organizations may use this weapon.

“CENTCOM (USCGC Clarence Sutphin Jr.) Intercepts Iranian Weapons Shipment Intended for Houthis” –U.S. Central Command Public Affairs –U.S. Central Command Public Affairs

Feb 15, 2024 ,U.S. 5TH FLEET – The U.S. Coast Guard Sentinel-class fast-response cutter USCGC Clarence Sutphin Jr. (WPC 1147) seizes a vessel carrying military-grade weapons and other lethal supplies in the Arabian Sea, Jan. 28. Clarence Sutphin Jr. operates in the U.S. 5th Fleet area of operations to help ensure maritime security and stability in the Middle East region.

Below is a US Central Command news release

Feb 15, 2024, U.S. 5TH FLEET – Military-grade weapons and other lethal supplies are stacked on the deck of a vessel seized by the U.S. Coast Guard Sentinel-class fast-response cutter USCGC Clarence Sutphin Jr. (WPC 1147) in the Arabian Sea, Jan. 28. Clarence Sutphin Jr. operates in the U.S. 5th Fleet area of operations to help ensure maritime security and stability in the Middle East region.

A U.S. Coast Guard cutter, forward deployed to the U.S. Central Command (CENTCOM) area of responsibility, seized advanced conventional weapons and other lethal aid originating in Iran and bound to Houthi-controlled areas of Yemen from a vessel in the Arabian Sea on Jan. 28.

The U.S. Coast Guard Sentinel-class fast-response cutter USCGC Clarence Sutphin Jr. (WPC 1147), assigned to U.S. Naval Forces Central Command, located the vessel and boarded it in the Arabian Sea. The boarding team discovered over 200 packages that contained medium-range ballistic missile components, explosives, unmanned underwater/surface vehicle (UUV/USV) components, military-grade communication and network equipment, anti-tank guided missile launcher assemblies, and other military components.

The direct or indirect supply, sale or transfer of such aid violates U.N. Security Council Resolution 2216 (as extended and renewed by resolutions 2675 and 2707).

“This is yet another example of Iran’s malign activity in the region,” said Gen. Michael Erik Kurilla, CENTCOM commander. “Their continued supply of advanced conventional weapons to the Houthis is in direct violation of international law and continues to undermine the safety of international shipping and the free flow of commerce.”

CENTCOM is committed to working with our allies and partners to counter the flow of Iranian lethal aid in the region by all lawful means including U.S. and U.N. sanctions and through interdictions.

“US, Britain Blast Dozens of Houthi Targets in Yemen in Retaliatory Strikes” –Voice of America

Topographic map in English of the Red Sea, UTM projection (WGS84 datum). Author: Eric Gaba – Wikimedia Commons user: Sting

Voice of America reports,

U.S. Central Command late Thursday said the series of strikes hit more than 60 targets at 16 locations in Houthi-controlled parts of Yemen, including command and control nodes, munitions depots, launching systems, and production facilities.

“Joint Warning To Houthis: Cease Attacks Or Face Consequences” –The Drive

The Drive reports,

A dozen nations on Wednesday issued a joint warning to the Iranian-backed Houthis in Yemen, demanding that they cease attacking commercial shipping in the Red Sea…“We call for the immediate end of these illegal attacks and release of unlawfully detained vessels and crews” the U.S., Australia, Bahrain, Belgium, Canada, Denmark, Germany, Italy, Japan, Netherlands, New Zealand, and the United Kingdom demanded in the joint statement published by the White House Wednesday.

The text of the warning is below the break.

Click on the graphic to enlarge. Credit: Intelschizo@Schizointel


“U.S. Navy Seizes Attackers Who Held Israel-Linked Tanker” –Real Clear Defense

In an undated photo released by Zodiac Maritime, the tanker Central Park is seen. Attackers seized the tanker linked to Israel off the coast of Aden, Yemen, on Sunday, Nov. 26, 2023, authorities said. While no group immediately claimed responsibility, it comes as at least two other maritime attacks in recent days have been linked to the Israel-Hamas war. (Zodiac Maritime via AP)

Real Clear Defense reports,

“Armed assailants seized and later let go of a tanker linked to Israel off the coast of Yemen on Sunday before being apprehended by the United States Navy, officials said. Two ballistic missiles fired from Houthi-controlled Yemen then landed near a U.S. warship aiding the tanker in the Gulf of Aden, raising the stakes amid a series of ship attacks linked to the Israel-Hamas war.”

“First on CNN: US Navy warship near Yemen intercepts multiple missiles, US officials say”

USS Carney (DDG-64

CNN repoorts (one of several such reports):

Pentagon press secretary Brig. Gen. Pat Ryder confirmed that the USS Carney shot down three land attack missiles as well as several drones that were launched by Iran-backed Houthi forces in Yemen.

Presumably this refers to land based anti-ship cruise missiles.

USS Carney (DDG-64) is a Flight I Burke class guided missile destroyer. In 2016 Carney completed an upgrade with a SeaRAM rolling airframe missile launcher replacing her after Phalanx CIWS.

Reportedly Carney brought down three cruise missiles and 8 drones. Other reporting suggests Carney was in company with USS Bataan (LHD-5) which may have been the intended target.

This incident occurred in the Red Sea. PATFORSWA cutters also operate in this area.

UPDATE:

Military Times reports,

“We cannot say for certain what these missiles and drones were targeting, but they were launched from Yemen heading north along the Red Sea, potentially towards targets in Israel,” Ryder said in a Pentagon briefing. A U.S. official said they do not believe the missiles were aimed at the ship. That official spoke on condition of anonymity to discuss military operations that had not yet been announced.

“US Navy seizes massive shipment of ammo, explosive material in Gulf of Oman” –Task and Purpose

The U.S. Navy released photos of a fishing trawler it says carried more than 50 tons of ammunition rounds, fuses and propellants for rockets when it was boarded Dec. 1., 2022 in the Gulf of Oman. (U.S. Navy 5th Fleet via Stars and Stripes)

Task and Purpose reports,

“For the second time in less than a month, the U.S. Navy intercepted a ship passing through the Gulf of Oman and seized a large shipment of illicit weapons bound for Yemen..The Navy made the interception on Thursday, Dec. 1. Sailors with the Navy’s 5th Fleet stopped a fishing trawler in the gulf. During a flag verification boarding, they found a large cargo of munitions and chemical propellant. The sailors seized 1.1 million rounds of 7.62mm ammo, as well as an additional 25,000 12.7mm rounds. The trawler also was carrying almost 7,000 rocket fuses and more than 2,000 kilograms of a propellant used in rocket propelled grenades. The cargo totaled more than 50 tonnes.”

The boarding party came from the expeditionary sea base USS Lewis B. Puller, but I think it is a safe bet Coast Guard personnel were involved in the boarding.

USS Lewis B. Puller (ESB-3)

 

“U.S. Naval Forces Intercept Explosive Material Bound for Yemen” –CENTCOM

USCGC John Scheuerman (WPC-1146) and USCGC Clarence Sutphin Jr. (WPC-1147) enroute PATFORSWA

Below is from the U.S. Naval Forces Central CommandCombined Maritime Forces – U.S. 5th Fleet website

U.S. Naval Forces Intercept Explosive Material Bound for Yemen

By U.S. Naval Forces Central Command Public Affairs | November 15, 2022

MANAMA, Bahrain —

On Nov. 8, U.S. 5th Fleet intercepted a fishing vessel in the Gulf of Oman smuggling lethal aid, including a large quantity of explosive material, from Iran to Yemen.

U.S. Coast Guard ship USCGC John Scheuerman (WPC 1146) (emphasis applied–Chuck) and guided-missile destroyer USS The Sullivans (DDG 68) interdicted the vessel as it transited international waters. Patrol coastal ship USS Hurricane (PC 3) and Navy explosive ordnance disposal technicians from U.S. 5th Fleet’s Task Force 56 also assisted during a weeklong effort to fully search the vessel and verify the type of material found.

U.S. forces discovered more than 70 tons of ammonium perchlorate, a powerful oxidizer commonly used to make rocket and missile fuel as well as explosives. This is U.S. 5th Fleet’s first ever interdiction of ammonium perchlorate.

“This was a massive amount of explosive material, enough to fuel more than a dozen medium-range ballistic missiles depending on the size,” said Vice Adm. Brad Cooper, commander of U.S. Naval Forces Central Command, U.S. 5th Fleet and Combined Maritime Forces. “The unlawful transfer of lethal aid from Iran does not go unnoticed. It is irresponsible, dangerous and leads to violence and instability across the Middle East.”

The search also found more than 100 tons of urea fertilizer. Urea is a chemical compound with agricultural applications that is also known for use as an explosive precursor.

The vessel and its four Yemeni crewmembers were intercepted while transiting from Iran along a route historically used to traffic weapons to the Houthis in Yemen. The direct or indirect supply, sale or transfer of weapons to the Houthis violates U.N. Security Council Resolution 2216 and international law.

U.S. forces sank the vessel Nov. 13 in the Gulf of Oman after determining it was a hazard to navigation for commercial shipping. The four crewmembers were transferred to Yemen for repatriation Nov. 15 when The Sullivans completed an at-sea exchange in the Gulf of Aden with the Yemen Coast Guard.

“Alongside our partner forces, CENTCOM is committed to security and stability of the region and to deterring the illegal and destabilizing flow of lethal material into the region over land, in the air, and the sea,” said Gen. Michael “Erik” Kurilla, U.S. Central Command (CENTCOM) commander.

U.S. 5th Fleet previously seized 40 tons of urea fertilizer Jan. 18 when guided-missile destroyer USS Cole (DDG 67) and patrol coastal ship USS Chinook (PC 9) interdicted a another fishing vessel in the Gulf of Oman that had attempted to smuggle illicit weapons off the coast of Somalia months earlier.

The U.S. 5th Fleet operating area includes 21 countries, the Arabian Gulf, Gulf of Oman, Red Sea, parts of the Indian Ocean and three critical choke points at the Strait of Hormuz, Bab al-Mandeb and Suez Canal.

“US Navy Seizes Weapons from Fishing Vessel in the Arabian Sea” –DVIDS

U.S. Navy Seizes 1,400 Assault Rifles During Illicit Weapons Interdiction

NORTH ARABIAN SEA (Dec. 20, 2021) U.S. service members from patrol coastal ship USS Typhoon (PC 5) interdict a stateless fishing vessel carrying illicit weapons while transiting international waters in the North Arabian Sea, Dec. 20. (U.S. Navy photo)

Below is a press release from Defense Visual Information Distribution Service (DVIDS). The boarding team was apparently Coast Guard. It’s likely the Webber class WPCs assigned to PATFORSWA will be doing this sort of work since the Navy PCs are being decommissioned.


U.S. 5th Fleet ships seized approximately 1,400 AK-47 assault rifles and 226,600 rounds of ammunition from a stateless fishing vessel during a flag verification boarding in accordance with customary international law in the North Arabian Sea, Dec. 20.

U.S. Navy patrol coastal ships USS Tempest (PC 2) and USS Typhoon (PC 5) found the weapons during a search conducted by embarked U.S. Coast Guard personnel. The illicit weapons and ammunition were later transported to guided-missile destroyer USS O’Kane (DDG 77) where they await final disposition.

The stateless vessel was assessed to have originated in Iran and transited international waters along a route historically used to traffic weapons unlawfully to the Houthis in Yemen. The direct or indirect supply, sale or transfer of weapons to the Houthis violates U.N. Security Council Resolutions and U.S. sanctions.

The vessel’s five crew members identified themselves as Yemeni nationals and will be returned to Yemen.

After removing the crew and illicit cargo, U.S. naval forces determined the stateless vessel was a hazard to navigation for commercial shipping and sank it.

U.S. naval forces regularly perform maritime security operations in the Middle East to ensure the free flow of legitimate trade and to disrupt the transport of illicit cargo that often funds terrorism and other unlawful activity. U.S. Navy warships operating in the U.S. 5th Fleet region have seized approximately 8,700 illicit weapons in 2021.

Guided-missile cruiser USS Monterey (CG 61) seized dozens of advanced Russian-made anti-tank guided missiles, thousands of Chinese Type 56 assault rifles, and hundreds of PKM machine guns, sniper rifles and rocket-propelled grenade launchers from a stateless vessel transiting the North Arabian Sea in May.

In February, guided-missile destroyer USS Winston S. Churchill (DDG 81) seized a cache of weapons off the coast of Somalia, including thousands of AK-47 assault rifles, light machine guns, heavy sniper rifles, rocket-propelled grenade launchers and crew served weapons. The inventory also included barrels, stocks, optical scopes and weapon systems.

The U.S. 5th Fleet area of operations encompasses approximately 2.5 million square miles of water area and includes the Arabian Gulf, Gulf of Oman, Red Sea, parts of the Indian Ocean and three critical choke points at the Strait of Hormuz, Suez Canal and Strait of Bab al Mandeb.

U.S. Navy Seizes 1,400 Assault Rifles During Illicit Weapons Interdiction

NORTH ARABIAN SEA (Dec. 21, 2021) Illicit weapons seized from a stateless fishing vessel in the North Arabian Sea are arranged for inventory aboard guided-missile destroyer USS O’Kane’s (DDG 77) flight deck, Dec. 21. (U.S. Navy photo by Mass Communication Specialist Seaman Elisha Smith)