Ukrainian forces used drones Wednesday to target multiple areas of southwestern Russia, including one that caused a fire at a fuel depot in Rostov.

Vasily Golubev, governor the Rostov region, said on Telegram that firefighters were working to put out the blaze and that there were no casualties.

Russia’s defense ministry said it shot down four Ukrainian drones over the Rostov region, along with eight drones over Voronezh.

Officials in Voronezh reported no damage or casualties.

In the Belgorod region bordering Ukraine, Governor Vyacheslav Gladkov said a Ukrainian drone attack damaged three houses but caused no injuries.

Russian air defenses also shot down a Ukrainian drone over the neighboring Kursk region, officials said.

In Ukraine, Dnipropetrovsk Governor Serhiy Lysak said a Russian attack killed at least three people and damaged infrastructure in the city of Kryvyi Rih.

Lysak said the attack came as the city was in mourning, following a deadly Tuesday missile strike on a hotel.

Kharkiv Governor Oleh Syniehubov said a Russian missile damaged houses and injured 12 people.

Some information for this story was provided by The Associated Press, Agence France-Presse and Reuters.