On Saturday, June 20, Russian authorities reported a drone attack on the Tyumen oil refinery, located approximately 1,900 kilometers from the Ukrainian border in Western Siberia. Drones target tyumen oil refinery in western Siberia Tyumen Region Governor Alexander Moor announced a drone alert and the evacuation of the refinery’s personnel via his official Telegram channel. JOIN US ON TELEGRAM Follow our coverage of the war on the @Kyivpost_official . Moor’s initial message at 11:25 a.m. local