(ANSA) - ROMA, SEP 7 - Ukraine claims to have again attacked the Druzhba pipeline in Russia's Bryansk region, from which Hungary and Slovakia also source Russian oil, causing "extensive fire damage." Sky News reports this, citing the commander of Ukrainian drone forces, Robert Brovdi. The pipeline supplies crude oil to Budapest and Bratislava, which continue to purchase energy from Russia, even after the EU decided to cut off flows. Brovdi's claim, Sky News points out, has not been independently verified, and Russia has not commented on the attack but has spoken of what it calls a separate attack on the Ilsky oil refinery in Krasnodar. (ANSA).