The attack was carried out late Sunday at Elazig, the security source said.

The rebels laid a mine under the track that derailed the train and then opened fire with high-powered rifles, the source said.

The four wounded were all in the locomotive or the wagons that were being pulled.

The banned Kurdistan Workers' Party (PKK), which is fighting for a Kurdish state in southeast Turkey, regularly attacks goods trains in the region.

The Kurish conflict has left more than 37,000 dead since the PKK rebellion started in 1984.