A major Russian oil refinery in the city of Orsk near the border with Kazakhstan has shut down for up to half a year following a Ukrainian drone attack earlier this week, authorities said Thursday.

Ukrainian forces struck a Russian oil refinery in Orsk on the night of 10-11 August. A fire was reported at the facility.

In the city of Orsk in the Orenburg Region of the Russian Federation, an oil refinery was likely hit by a drone attack, triggering a massive fire. — Ukrinform.