Ukraine's military says it has hit a plant producing electronics for missiles in Russia's border Voronezh region and the Russian region's governor says five people were killed and dozens injured in the attack.
The missile assault on the city of Voronezh announced by the Ukrainian military was the latest blow to Russia's military industry inflicted by long-range strikes.
The Ukrainian General Staff said it had used air-launched cruise missiles to hit the facility, which it described as a "critical component" in Russia's defence production in the city less than 200km from the Ukrainian border.