State Emergency Service of Ukraine in the Kharkiv regionRussia attacked the eastern Ukrainian city of Kharkiv at night and in the evening with drones, missiles and guided bombs, killing several people and injuring more than 60,

Ukraine denied Russian allegations on Saturday that it had indefinitely postponed prisoner swaps, accusing Moscow of "playing dirty games" after overnight Russian missile and bomb strikes on Kharkiv left three people dead and 22 injured.

The hostilities have come after the two sides agreed to swap more prisoners and turn over the bodies of 12,000 soldiers at the second round of talks held in Istanbul on Monday.