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 discussed further prisoner swaps on Wednesday at a brief session of peace talks in Istanbul, but the sides remained far apart on ceasefire terms and a possible meeting of their leaders.

The attacks came hours after brief direct talks failed to make any progress on steps to end nearly three-and-a-half years of war.

Tulsi Gabbard disputes findings that Russia interfered in 2016 election to help Trump, which previous investigations have concluded.

Director of National Intelligence Tulsi Gabbard said that the trove of documents the Trump administration has recently declassified allegedly show "gross politicization and manipulation of intelligence by the Obama administration.