A bomb planted near railroad tracks has derailed a passenger train in Russia's southern republic of Dagestan.

Two rail cars and the locomotive derailed about 11 p.m. Moscow time Saturday night near the border with Chechnya. The train was traveling from Makhachkala to Astrakhan.

Nobody on the train was hurt, but an official with Russia's Federal Security Forces was wounded as he was headed to the scene of the accident. His car was hit by gunfire near the city of Khasavyurt. He was taken to the hospital for treatment.

Dagestan has suffered recent unrest blamed on local insurgents and spillover violence from Chechnya, where separatists have been battling Russian troops for much of the past decade.

Some information for this report provided by Reuters.