Ukraine's PM Arseniy Yatsenyuk warns of 'tough reforms'

Ukrainian Prime Minister Arseniy Yatsenyuk has been speaking about his intention to de-escalate the situation in the east of Ukraine and to press on with ''tough but necessary reforms''.

Speaking to the BBC's David Stern, the prime minister said he intended to continue the path to making Ukraine ''a pro-European state''.

A fragile ceasefire is holding, despite some fighting in recent days.