Vladimir Putin accuses the west of provoking 'energy chaos' among its citizens, due to its refusal to trade with Russia.
German officials warn reserves will only last until the Autumn if Russian gas supplies are cut - while some EU members mull returning to coal.
Austria's former foreign minister also states Europe's stance to cut itself off from Russian energy may be costly.
Around a thousand Ukrainian marines reportedly surrender to Russian-led forces in Mariupol.
That's as some members of Kiev's nationalist battalions try to flee the battleground in the key Donbass city.
RT follows Russian troops as they seize suspected radicals.
