Ukraine is trying to re-take government buildings in the Donetsk region from pro-Russian militants.

The Russian Prime Minister last night warned that the country was on the verge of civil war amid Kiev's 'anti-terrorist operation'.

Britain's Foreign Secretary has warned Russia that it's in danger of making a 'grave miscalculation' if it continues a campaign to destabilise Ukraine.

Gulliver Cragg of France 24 news is in Donetsk - he says the Ukrainian government's operation has had very little success so far: