Officials in several Russian regions, some hundreds of kilometres from the border, reported strikes overnight.

Ukraine has launched a "massive attack" that hit multiple targets in Russia 's Engels, Saratov, Kazan, Bryansk, and Tula, a senior Ukrainian official said. At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

Ukrainian air defence and mobile drone hunter groups shot down 58 out of 80 drones launched by Russia in overnight attacks on Tuesday, the air force said in a statement.