According to Ukrainian media, citing Ukrainian national security agency sources on Monday, the Ukrainian national security agency’s drone hit a oil pump station in the Russian republic of Chuvash on the same day.
Officials in the Chuvash Republic of Russia confirmed the same day that Ukrainian drones attacked a pump station on the "Friendship" oil pipeline in the region, but the attack did not cause serious damage.
The "Friendship" oil pipeline is a large pipeline network system for Russia to transport crude oil to Central and Eastern Europe. This pipeline and its ancillary facilities have been attacked many times recently. Hungarian Foreign Minister Szijjarto said on the 27th that the attack that day did not affect the oil supply to Hungary.