Moscow: Waves of Ukrainian drone attacks killed seven warehouse workers and injured dozens more, while another attack sparked a fire at an oil depot in the wider capital region, regional governors said on Saturday.Governor Evgeniy Pervyshov said ‌25 people ⁠were ⁠injured after Ukrainian drones slammed into a warehouse owned by ​Wildberries, Russia's largest online retailer, in the city of Kotovsk in ​the Tambov region, roughly 475 kilometres (295 miles) southeast of Moscow."Seven people working the night shift died ​on the spot," Pervyshov wrote on ⁠Telegram, adding ‌that 28 drones were also shot ​down on ​approach."If they had achieved their goal, ⁠the number of civilian casualties could have ​been much higher," he said.In a separate incident, the governor of the Moscow region, Andrei Vorobyov, said 24 people were injured following a drone attack on another Wildberries warehouse in Elektrostal, a city east of Moscow.Wildberries co-founder and CEO, ‌Tatyana Kim, said it had been a "terrible night" for Russia and for the company, ​offering her ​condolences to the ⁠victims' families.In the city of Noginsk, also in the Moscow region, falling drone debris caused a fire to ​break out at an oil depot, Vorobyov said.He did not specify the damage to the facility, but said two people were injured in Noginsk and a nearby maternity hospital had been evacuated.