“British armed forces forcibly boarded and regained control of an oil tanker in the English Channel on Sunday evening following reports of a suspected hijacking, according to the UK defense ministry.”
As we learn more I will add in comments.
“Oil tanker: UK armed forces board, regain control off Isle of Wight” CNN
Chuck Hill's CG Blog 
A bit more information about how the tanker was retaken. https://www.theguardian.com/uk-news/2020/oct/25/attempted-hijacking-of-oil-tanker-reported-off-isle-of-wight?fbclid=IwAR2yZCZG5OgSUSTzlTSeGdxXikSaNwGSW_HaNXXoAFM9GZxLd5ukDgexX9w
Special Boat Service (SBS) used four helicopters, two Royal Navy Merlin and two navy Wildcat helicopters. Probably a 16 person boarding party.
For those not familiar, Poole is the location of Royal Marines Base Poole, and home to the Special Boat Service