Russia has launched hundreds of drones and missiles on western Ukraine overnight in one of the heaviest bombardments in recent weeks, Ukrainian officials have said. Strikes were reported in Zaporizhzhia, Dnipropetrovsk, and Lviv, where one person was killed and others injured.

If Putin rejects a bilateral summit with Ukraine’s leader, the U.S. should take strong measures, Zelensky said. Russia said much needs to be worked out before a meeting is possible.

The attack mostly targeted western regions of the country, the air force said, where much of the military aid provided by Ukraine's Western allies is believed to be delivered and stored.