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.

Russia and Ukraine launched drone strikes against each other early on July 24, officials from both sides said, as fierce fighting continued to rage along the battlefield.