Ukrainian long-range drones attacked an industrial plant around 1,300 kilometers (800 miles) inside Russia, local officials said Tuesday, while Ukraine’s army remained locked in an intense battle to hold back a Russian push on the key city of Pokrovsk in the eastern Donetsk region.

The facility was struck shortly before 8 p.m. local time, according to footage posted to social media. The Kyiv Independent could not verify these reports at the time of publication.

Fighters from the Ukrainian Defense Ministry's Main Intelligence Directorate (HUR) have struck the headquarters of Russia's Rubicon UAV unit, which had been set up in a partially destroyed building in the temporarily occupied city of Avdiivka,

Two people, including a 98-year-old woman, were killed and one person injured in an overnight Ukrainian drone attack in Russian-controlled Donetsk, Moscow-installed authorities said Monday.