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.

President Donald Trump is hoping separate phone calls with Russian leader Vladimir Putin and Ukrainian President Volodymyr Zelenskyy will make progress toward a ceasefire in the war in Ukraine.

Russia launched on Sunday its largest drone attack on Ukraine since the start of the war, destroying homes and killing at least one woman a day before U.S. President Donald Trump is due to discuss a proposed ceasefire with Russia's Vladimir Putin.