Ukraine has used long-range drones to attack Russian oil platforms as it expands its strikes on the country's energy sector.

The founder of Russia's opposition Yabloko party, which wants a ceasefire in Ukraine, has said his party will keep campaigning despite the arrest of two senior figures, a move he said was meant to derail it before next year's parliamentary election.

The European Union is set to lock up Russia’s assets in Europe until Russia ends its war on Ukraine and compensates for the damage.

The Russian submarine was allegedly carrying Kalibr cruise missiles, which Russia has used in devastating strikes on critical infrastructure and military targets across Ukraine. The SBU said the submarine was “put out of action” as a result of the blast. The FT could not independently verify the claim.