In the power vacuum, a new government starts to form

For the men facing off at the airport, the multinational peace deal is meaningless

A victim of a stun grenade attack in Mariupol tells Kim Sengupta that the current tensions could set Ukrainian against Ukrainian for years

The first 24 hours of the operation has seen Ukrainian APCs flying Russian flags and a general attacked by a crowd for obeying the orders of a 'fascist regime'

Ukrainian troops use helicopters to seize back airport held by pro-Russian militiamen while ground forces gather around separatist stronghold of Slovyansk

The Kiev administration continues to talk tough, as it did while losing Crimea, as Horlivka becomes the latest city where state institutions have passed into the hands of separatists

West accuses Moscow of orchestrating upheaval that threatens security consensus that ended the Cold War

Masked gunmen are storming more government buildings, barricading roads and demanding a split from Kiev

Kim Sengupta reports from Donetsk, where tensions are growing and a ‘People’s Republic’ has been declared

Armed with Molotov cocktails, defended by razor wire, the separatists tell Kim Sengupta they are ready to fight Kiev’s forces