Protesters and police clash in a fiery conflict in the Ukrainian capital of Kiev. (AP Photo/Sergei Grits)
Protests broke out in late November after the government’s rejection of a planned treaty with the EU.
The crisis escalated this week when two activists were shot dead during clashes near the main protest camp on Kiev’s Independence Square.
On Friday, anti-government demonstrations spread beyond the capital, with protesters now occupying several regional government buildings.
President Viktor Yanukovych earlier promised to make concessions to try to end the country’s crisis.
He pledged to amend anti-protest laws and reshuffle the cabinet.
But opposition leader Vitaly Klitschko said the protesters now wanted the president to resign.