Kiev protests: 'Death count almost certainly three'
23 January 2014 Last updated at 00:37 GMT
Ukrainian opposition leaders have issued an ultimatum to President Viktor Yanukovych, after talks failed to resolve the political stalemate.
Vitali Klitschko said he would lead pro-EU protesters "on the attack" in the capital, Kiev, if the government refused to call snap elections.
Prime Minister Mykola Azarov said compromises "might be possible", but the opposition should avoid ultimatums.
Two activists were killed in clashes with police in Kiev on Wednesday, but the number may have risen.
Gabriel Gatehouse reports.