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.

Officials from Russia and Ukraine ended a third round of formal negotiations in Istanbul with an agreement to swap more prisoners but little sign of progress on a deal to halt the 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,