British Foreign Secretary David Cameron has called for tougher sanctions against Russia and stricter enforcement of existing restrictions, particularly targeting the fleet transporting Russian crude oil around the world, the CFTS portal reports.

"The first thing I would like to see is really tough sanctions against the Russian companies and individuals who are helping to continue this war and support the Russian military machine," he said in an interview with the Italian newspaper Corriere della Sera.

Cameron stressed sanctions would also be imposed on companies in China, Turkey, Kyrgyzstan, and even Israel that supply dual-use materials to the Russian military.

"We must also hunt down the phantom fleet that illegally delivers Russian oil around the world: every time they approach an Italian port, I want to make sure they are blocked. We will show Putin that we are with Ukraine all the way. We will target finances, crude oil, we will stop gas, we will stop ships, we will do everything to stop the Russian war machine and to show Putin the futility of his actions," he said.