Russia said Sunday that trains carrying more bodies of Ukrainian soldiers were due to depart toward the Ukrainian border, escalating a spat with Kyiv over a prisoner of war swap. “I can tell you that in just an hour,

Ukraine and Russia, earlier this month, agreed to exchange 1,000 prisoners of war and civilian detainees each in a rare moment of cooperation in more than three years of war.

Both Russian and Ukrainian forces have continued to carry out strikes amid the stalled exchange efforts. The Russian Defense Ministry said on Saturday that the military conducted group strikes using long-range precision weapons and drones against targets in Ukraine, following six similar attacks over the past week.