Ukraine has launched a barrage of drones on arms depots in Russia, in the second such attack this week. Russia's defence ministry said it intercepted 101 drones but multiple depots were set ablaze in the country's south and north-west.

A large-scale Ukrainian drone attack on Russia triggered an earthquake-sized blast at a major arsenal in the Tver region on Wednesday, forcing the evacuation of a nearby town, war bloggers and some media reported.

Ukraine struck the Moscow region on Tuesday in its biggest drone attack so far on the Russian capital, killing at least one woman, wrecking dozens of homes and forcing around 50 flights to be diverted from airports around Moscow.