All four international airports around Moscow temporarily suspended flights Tuesday as Russian forces intercepted more than 100 Ukrainian drones fired at almost a dozen Russian regions, the Defense Ministry in Moscow said.

Russia says Ukraine launched a drone attack on Moscow - days before the start of a ceasefire, ordered by Russian President Vladimir Putin to coincide with a World War Two parade. Moscow's four major airports shut for a few hours on Tuesday amid the barrage, authorities said. There were no casualties and Ukraine has not commented.

U.S. President Donald Trump said Moscow and Kyiv want to settle the war in Ukraine and that Russian President Vladimir Putin was more inclined towards peace after the recent fall in the price of oil.

"I think Russia, with the price of oil right now, oil has gone down, we are in a good position to settle, they want to settle. Ukraine wants to settle," U.S. President Donald Trump said.