The warring sides also exchanged prisoners in one of the few results of talks last week, and Russia reported new attacks on the front line.

Russia launched its largest drone attack of the war on Ukraine, firing 479 drones and 20 missiles amid stalled peace talks and escalating frontline battles.

Moscow fired a record 479 drones at Ukraine, including on the western region of Rivne that has been largely spared from attacks, Kyiv said Monday

Russia hit Ukraine overnight with its largest drone attack since the start of the war, causing some damage at a military airfield in the west of the country, the Ukrainian air force said on Monday.

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.

Ukrainian President Volodymyr Zelensky confirmed that the Trump administration diverted 20,000 anti-drone missiles originally meant for Kyiv to American forces in the Middle East.