Antigovernment protests in ukraine
10 injured in clashes between Ukraine police and protesters
Police said about 100 activists had been detained due to violence, while six protesters and four police officers were hurt in the clashes.
Kiev said it had reached a mutual understanding with Moscow on parts of a plan for ending violence.
The Ukrainian army rolled out an offensive against pro-Russia separatists holding the city of Slaviansk.
Ukrainian forces launched an operation to retake the eastern town of Slaviansk on Thursday.
Kiev is seeking to reassert control slowly and without bloodshed before Thursday’s meeting.
Pro-Russian separatists ignored an ultimatum to leave government buildings in eastern Ukraine.
Ukraine’s security said separatists occupying the security headquarters had planted bombs in the building.
Protesters seized the regional administrative building in Ukraine’s second largest city.
More than 100 people were killed, most by police snipers, on the streets of the capital.
US and EU imposed personal sanctions on Russian and Crimean officials involved in the seizure of Crimea.
John McCain has called for his country to provide long-term military assistance to the Ukraine.
Voting in Crimea is proceeding without any major reports of disruptions although tensions are increasing.
The EU agreed on a framework for its first sanctions on Russia since the Cold War.
The EU meanwhile offered Ukraine's new pro-Western government 11 billion euros in financial aid.
The US president has warned Russia military intervention in Ukraine would lead to costs as tensions rise.
Armed men seized the regional parliament in a mainly ethnic Russian region and raised the Russian flag.
Crimea is the last big bastion of opposition to the new political leadership in Kiev.
Ukraine’s protest leaders named the ministers they want to form a new government
A resolution linked Yanukovich to violence against protesters in which more than 100 people were killed.