Britain will ban Russian oil imports, Politico reported, citing Whitehall officials.

The move is expected to be announced today and will set out the ban and its phase-in period, which is expected to last about a year.

There will not be a ban on Russian gas at the same time, but officials confirmed the issue was still under discussion by the UK government.

British Prime Minister Boris Johnson said on Monday his government would develop a new energy strategy as the Ukrainian crisis and subsequent rise in energy prices reinforce the need for new sources of energy and greater self-reliance.

Earlier in the day, oil prices rose on expectations that the US would announce a formal ban on Russian oil imports.

On Tuesday, the European Commission published plans to cut EU dependence on Russian gas by two-thirds this year and end dependence on Russian fuel supplies well before 2030.