Boris Johnson has accused Vladimir Putin of "plainly" breaking international law after the the Russian President vowed to recognise two breakaway republics.
Speaking at a Downing Street press conference, the Prime Minister said the move was an “ill omen” and a “dark sign” from Moscow.
In a rambling, 56-minute televised address, Mr Putin decided to formally back Luhansk and Donetsk, where Moscow-backed separatists have revolted against Kyiv rule.