A Russian defense official Sunday said trains carrying the remains of Ukrainian soldiers would be dispatched to an area near the Ukrainian border, stepping up tensions over a prisoner swap between Moscow and Kyiv.

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,

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.