The warring sides remain far apart after the third round of U.S.-brokered peace negotiations on Wednesday. But there was progress on humanitarian issues.

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.

Ukraine, Russia hold third round of peace talks in Istanbul * Ukrainian drones reportedly target key logistics hub in southwestern Russia * Russia suffered 80,000 casualties during Kursk incursion, Ukraine's military chief says * 'He sees Trump as emotional and susceptible to influence' — Putin not worried about 50-day ceasefire deadline,