Nine people have been killed as violent clashes between Ukrainian protesters and police returned to the streets of Kiev on Tuesday in the worst outbreak of violence since demonstrations erupted against President Viktor Yanukovich.
Ukrainian police say seven civilians and two policemen died as the authorities used rubber bullets, smoke and stun grenades on protesters, and clashed with civilians on the barricades surrounding the capital's Independence Square.
Scores of police and protesters were injured, with demonstrators throwing paving stones, fireworks and petrol bombs at police.
Earlier Tuesday, the authorities had set protesters an early evening deadline to end street disorder or face "tough measures".
The European Union's top foreign policy chief Catherine Ashton said on Tuesday that she was very worried about the escalation in violence.