Russia's air defense systems destroyed several drones as they approached the Ilsky oil refinery in the Krasnodar region near the Black Sea, local officials said on Sunday.
"Several unmanned aerial vehicles (UAVs) tried to approach the territory of the Ilsky oil refinery in the Krasnodar Krai," the region's emergency officials said on the Telegram messaging channel.
"All of them were neutralized, the infrastructure of the plant was not damaged."
The officials did not say who launched the attack. Reuters was not able to independently verify the report.
(Reuters)