Ukraine appears to have targeted Russian border regions for the second day in a row with sweeping drone attacks. Ukraine has reportedly struck and damaged a Russian security services (FSB) building in the border region of Belgorod."The Ukrainian Armed Forces attacked the FSB building in Belgorod using a UAV, operational services report," as per Russian state-run TASS news.Belgorod governor Vyacheslav Gladkov said four drones were destroyed and some houses were damaged in the town of Gubkin. Falling debris from downed drones damaged a gas supply line and cut off power to some villages, Gladkov added.In total, 58 Ukrainian drones were shot down by Russia, according to the country's the ministry of defence.A fire broke out at an oil refinery in Russia's western Ryazan Oblast in the early hours of March 13, according to the region’s governor Pavel Malkov.