MOSCOW – Ukraine has attacked two more warehouses of Russian online retailer Wildberries, its boss said on Wednesday, extending a series of drone strikes on a company at the heart of Russia’s consumer economy.

Tatyana Kim, the co-founder and head of Wildberries, said warehouses had been attacked in Krasnodar and Nevinnomyssk, both in southern Russia.

Social ​media footage, showed a huge plume of smoke rising into the air in Krasnodar. The regional governor said ‌a young ‌woman had been killed and three other people were being treated in hospital.