Russia battered Ukraine overnight with its largest drone attack since the war began, Ukraine’s military said Sunday, ahead of an expected phone call between US President Donald Trump and Russian President Vladimir Putin on ending hostilities.

Ukraine has accused Russia of launching its biggest drone attack since the Kremlin began its full-scale invasion in 2022, just hours after President Zelenskyy held a meeting with the Pope.

A Russian drone strike hit a passenger bus in northeastern Ukraine on Saturday, killing nine people and injuring four others, Ukrainian officials allege. The attack came just hours after Russian and Ukrainian officials held their first direct peace talks in years,