Fire at oil refinery in Russia's Volgograd extinguished, authorities say

(Reuters) -A fire at a Lukoil oil refinery in Russia's Volgograd region has been extinguished, local authorities said on Thursday evening.

Earlier, officials said the blaze was triggered by debris from a Ukrainian drone.

Ukraine's military said its drones struck the refinery overnight, causing large fires at a facility it claimed was supplying Russian forces.

Russia's defence ministry said air defence systems had intercepted and destroyed 44 Ukrainian drones overnight, including nine over Volgograd region.

(Reporting by Maxim Rodionov; Editing by Kirsten Donovan)