An attack on Volgograd's oil refinery is underway, a Ukrainian monitoring channel reports

The Ukrainian monitoring channel Exilenova+ reported Thursday evening that an attack was underway on the Lukoil-run Volgograd oil refinery in southern Russia, and posted video of a fire glowing on the city's skyline.

That identification of the burning site as the refinery has not been confirmed by Russian officials. Volgograd's governor, Andrey Bocharov, said air defenses were repelling a large drone attack and that falling drone debris had caused local fires at an industrial facility in the city's southern industrial zone and on nearby ground, without naming the plant. He said there were no casualties and no damage to residential buildings.

The Exilenova+ video shows a distant red glow beyond apartment buildings, not a close view of the facility. Ukraine's General Staff has not, in reporting reviewed for this article, confirmed a strike on the refinery Thursday.