Poland's armed forces have scrambled aircraft in response to the threat posed by a combined drone and missile attack by Russian forces on Ukraine. The NATO member said in a statement the aircraft were deployed overnight Sunday and air defense and radar reconnaissance systems had been placed on high alert.

Ukraine faced another Russian drone and missile attack early Monday, with air raid alerts sounding across the country for at least six hours since midnight Kyiv time.

NATO aircraft were scrambled Sunday night to respond to a Russian attack on Ukraine, the Polish military said Monday.