Russian authorities said Wednesday that security forces eliminated four thought militants linked to the Islamic State (IS) group who were preparing an attack in the southern republic of Dagestan.Dagestans local leader, Sergei Melikov, stated the 4 were removed in an overnight anti-terrorist operation in the republics capital, Makhachkala.He stated the group had actually planned to assault a police station in the city of Kaspiisk and announced on Telegram that the suspects had actually been neutralized.Security forces seized grenade launchers, homemade dynamites, grenades and automated weapons during the raid, Melikov added.Authorities provided no information about the suspects however said they were linked to the prohibited IS group.The operation comes almost a year after gunmen killed 145 individuals at a Moscow auditorium in an attack that authorities blamed on Islamic State militants.