Ukraine drone starts fire at one of Russia’s largest oil plants

Head of Bashkortostan region reports second drone shot down and minor damage to Bashneft's Ufa refinery

A Ukrainian drone has crashed into one of Russia's largest oil-refining complexes, sparking a fire and causing minor damage, a Russian official has said.

The complex, which belongs to Russian oil company Bashneft, lies on the outskirts of the central Russian city of Ufa about 870 miles (1,400km) from the frontline in Ukraine.