Euromaidan activists say they are concerned about the appearance of Tyhr riot police officers in Kyiv and believe that an assault is being prepared, the Ukrainska Pravda online newspaper has reported.

"The bomb threats were a distraction. Fire trucks are connecting to hydrants near Kyiv City State Administration. Two columns of law enforcement officers have taken up positions on Besarabska and Mykhailivska Squares," Euromaidan activist Oleh Lazarenko said.