Russian air defense forces destroyed 36 Ukrainian drones over seven Russian regions overnight on Monday, the defense ministry said.

Denis Pushilin, the top Russian-backed official in Donetsk, said an attack by Ukrainian strike drones on energy infrastructure had left roughly 500,000 people without power across several districts. Work was continuing to restore the electricity supply, Pushilin wrote on Telegram.

The governor of the Ulyanovsk region east of Moscow said an attack by a Ukrainian drone on a substation there had been repelled. There were no casualties and the power supply was unaffected, Alexei Russkikh wrote on Telegram.