British forces on Sunday intercepted a sanctioned oil tanker belonging to Russia’s shadow fleet in the English Channel, the defence ministry said, in a six-hour operation hailed by Kyiv. Navy commandos boarded the ship under cover of darkness by fast-roping from a helicopter in the dark, according to footage released by the ministry. The interception in the early hours was supported by Chinook, Merlin Mk4 and Wildcat helicopters and a maritime patrol aircraft, a statement said.