The Ukrainian attacks on the sprawling Russian warehouses produced stark images, with massive pillars of black smoke rising above fires that raged at facilities for Wildberries, the country’s biggest online retailer and its equivalent of Amazon.

Kyiv’s drones first hit the sites over the weekend in Elektrostal, just east of Moscow, and in the Tambov region, killing eight people and injuring scores more. Two more Wildberries warehouses -– in the southern Krasnodar and Stavropol regions -– were attacked and set ablaze early Wednesday. One person was killed, and 14 others were hurt.