At least three people were killed in overnight Ukrainian attacks on annexed Crimea, local authorities said Monday morning, while the online retailer Wildberries said drones struck yet another one of its warehouses in central Russia.

Sergei Aksyonov, the Russian-appointed head of Crimea, said three civilians were killed and two others were wounded in a nighttime attack, though he did not say where it took place.

In Russia, Wildberries said it evacuated employees from its warehouse in the Vladimir region, located east of Moscow, after Ukrainian drones targeted the facility. The company said firefighters were battling a blaze that had broken out.

Videos and photos shared on social media showed a large column of smoke rising above what was said to be the warehouse.

Vladimir region Governor Alexander Avdeyev said three people were injured in the attack.