Police say about 100 militants have ambushed a police station in the northwestern city of Peshawar, shooting dead three officers.

Saeed Khan, a senior police official in the city, says the early Friday attack wounded another nine officers in the Sarband neighbourhood on the edge of the city.

He says Sarband borders the Khyber tribal region, an area where many insurgents live.

Khan says he doesn’t know what group to which the shooters belong.