A Ukrainian drone attack at an industrial plant in central Russia has killed three people and injured 35 others, a Russian regional governor has said.

Three people have been killed and 35 taken to hospital following an attack by Ukraine on a factory in the city of Izhevsk - more than 1,000km (620 miles) from the border, Russian authorities say.

Russia ramped up drone attacks on Ukraine dramatically in June, an AFP analysis published Tuesday showed, pressuring the war-torn country's stretched air defence systems and exhausted civilian population.