Ukraine has struck the Lukoil oil refinery in Ukhta, Russia, 1,700km from the front line, triggering a fire at a processing unit.

Ukraine has struck the Lukoil oil refinery in Ukhta, Russia, 1,700km from the front line, triggering a fire at a processing unit. The Ukhta refinery has a processing capacity of 4.2 million tons per year.