India, Aug. 8 -- Ukrainian long-range drones hit a warehouse in the Ural Mountains belonging to Russia's biggest online retailer, more than 2,000 kilometres from the two countries' border, local officials and the company said Friday.

Ukraine has regularly hit targets in the distant Urals this year and has even struck a Russian oil refinery in western Siberia, nearly 2,500 kilometres from the border. The attacks are examples of how Kyiv has used drone innovation as a key part of its response to the invasion by its much bigger enemy more than four years ago.

Its successes have drawn international interest and drone cooperation agreements with nine countries, with further deals being negotiated with 15 other countries, according to Kyiv of...