Russias Federal Security Service (FSB)said Thursday it has repelled a Ukrainian sabotage groups attempt to infiltrate western Russias Bryansk region, the second attempted incursion this month.Two Ukrainian fighters were purportedly killed and five others were detained Wednesday, the FSB said in a statement.Russias intelligence agency did not say how many Ukrainian fighters in total tried to cross into the Bryansk region, which borders both Ukraine and Belarus to the west.The FSB noted that the group consisted of personnel from Ukraines SBU security service, the GUR military intelligence and the Spetsnaz special forces.The purpose of the saboteurs infiltration was to commit a series of high-profile terrorist acts on military and energy infrastructure, the FSB said.The operation to repel the sabotage group was carried out jointly by the FSB, Russia's National Guard and law enforcement personnel.Russias state-run news agency RIA Novostipublisheda video of a weapons cache seized from the Ukrainian group, including at least six automatic rifles, nine hand grenades and two dozen magazines.The FSBs statement noted that the seized grenades and ammunition were of a NATO standard.Bryansk region Governor Alexander Bogomaz, who hadreported the previous Ukrainian border infiltration earlier in August,commented on the latest incursion and echoed the FSBs official statement.Bogomazs remarks, however, identified the location of the attempted incursion as the Navlinsky district, situated just south of the city of Bryansk and 35 kilometers north of the Russia-Ukraine border.The FSBs statement incorrectly referred to the Navlinsky district as Nevelsky district, which is not part of the Bryansk regions administrative divisions.