The Syzran oil refinery in Russia's Samara Oblast is on fire following a drone attack on 4 August, according to Russian and Ukrainian monitoring channels.

Russian regions came under drone attack during the night of August 1, with reports from Ufa indicating black smoke rising over the Bashneft-Ufaneftekhim oil refinery. — Ukrinform.

Drones damaged an oil refinery in Saratov and an airbase in Engels overnight. Explosions and fires have been confirmed.