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.

A separate Russian drone and missile barrage wounded seven people including a child in the central Ukrainian region of Cherkasy, emergency services said. And in the southern port city of Odesa, a Russian drone attack wounded four people and badly damaged a market.