'Central Kiev is beginning to look like a war zone'

Ukraine's capital Kiev erupted into a full-scale battle today leaving at least 39 people dead, with many of those killed victims of pro-Government snipers.

As fighting continued - which left many people injured on both sides - a group of 67 police officers were taken hostage by demonstrators.

Latest updates on the violent clashes in Kiev

Europe Editor James Mates reports from Kiev:

Video: Close-up footage of battle between police and protesters


Ukraine warns Russia against 'act of aggression' in Crimea

Ukraine's acting president has warned Russia that troop movements outside its naval base in Crimea would be seen as an "act of aggression". Armed men seized regional government headquarters and parliament and the Russian flag is flying from buildings