Ukraine has claimed responsibility for a drone attack in Russia's Tatarstan region - more than 1,300km (807 miles) from the Ukraine-Russia border.

The strikes, in which 12 people were injured, are the deepest into Russian territory since the start of the war.

Local authorities said that the strikes hit the town of Yelabuga, where drones are thought to be produced, and an oil refinery in nearby Nizhnekamsk.