Ukraine and Russia attacked targets on each other's territory on Thursday after brief direct talks between the two sides failed to make any progress on steps to end nearly three-and-a-half years of war.

Deaths have been reported on either side of the border, just hours after a third round of ceasefire talks took place in Turkey.

Russian forces launched a second strike on downtown Kharkiv on the evening of July 25, according to Kharkiv Mayor Ihor Terekhov. "Another impact has been recorded in the downtown area, not far from the first strike.