TEHRAN, Iran -- Iran's semi-official Mehr news agency is reporting that Kurdish militants have killed three members of the elite Revolutionary Guard in the country's northwest.
The Tuesday report said armed members of the Kurdistan Democratic Party also wounded a Guard member after they opened fire on a Guard vehicle in an ambush in a village near the Iran-Iraq border town of Piranshahr, some 700 kilometers (450 miles) west of the capital Tehran.
It said authorities are investigating the shooting.
The area has seen occasional fighting between Iranian forces and Kurdish separatists as well as militants linked to the extremist Islamic State group. Earlier this month, two Guard members were killed in a shootout in which two gunmen were also killed.
Iran's eastern borders have also been the scene of occasional clashes between Baluch militants.