(Reuters) -Ukraine's military said on Sunday that it had struck an oil refinery in Russia's Saratov region in an overnight drone attack. In a statement, the General Staff said the strike on the Saratov oil refinery had caused explosions and a fire.

Drones attacked an oil refinery on the night of 9-10 August in the Russian city of Saratov, Saratov Oblast, after which a large-scale fire broke out at the facility. There are also reports of air defence activity and explosions in a number of other Russian regions.