MOSCOW — A fire broke out at an oil refinery in Russia's Kaluga region after the crash of a Ukrainian drone, local emergency services said on Friday.

"A fire occurred on the territory of First Plant LLC due to the fall of a drone. There were no deaths or injuries," RIA Novosti quoted a spokesperson of the emergency services as saying.

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The refinery is located in the Dzerzhinsky district of Kaluga oblast, some 150 km southwest of Moscow.

The spokesperson said the blaze engulfed three diesel fuel containers, each holding roughly 20 cubic meters, and one fuel oil container with approximately 6 cubic meters.