Separatist leader: 'Ukraine rebels will not surrender'

One of the leaders of separatist rebels in eastern Ukranine has told the BBC that the militants will not surrender - despite increased pressure from Ukrainian government forces.

Ukraine's military has made significant gains in recent days, including recapturing the rebel stronghold of Sloviansk.

Oleg Tsaryov, the self-proclaimed head of the breakaway republic of Novorossiya (New Russia), told the BBC's Steve Rosenberg that he "knew the mood of the insurgents" and that they were "not going to surrender".