Unidentified men have fired three rockets at a grid station in the restive Pakistani southwestern Balochistan province, injuring one person, local media reported.

The rockets were fired late Saturday night at the town of Much,some 60 kilometers south of Quetta, the capital of Balochistan, the local news agency News Network International reported here on Sunday.

Eyewitnesses said the rockets were fired from the nearby mountains.

Two rockets landed in the lawn of the grid station, but the installations were safe, the report quoted a spokesman for the power distribution authority as saying. Police said another rocket landed outside the station, injuring one person.

A man, introducing himself as Azad Baloch, said that the Baloch Liberation Army has claimed responsibility for the attack.

On Friday, unidentified men fired five rockets at Kuhlu, some 300 kilometers east of Quetta, injuring two paramilitary soldiers.