A member of Afghanistan's government-backed militia programme has shot and killed five of his colleagues, an official has said.
The shooting happened on Thursday morning in a remote part of Badghis province's Qadis district, provincial government spokesman Mirwais Mirzakwal said.
He said he did not have further details because the region is difficult to reach over the telephone but confirmed that investigators have been sent to the site of the shooting.
The attacker was a member of the Afghan Local Police, a programme in which the government in Kabul and international allies train and fund villagers to mount defence forces against insurgents.
It was the latest in a string of insider attacks by members of the Afghan security forces against colleagues or international advisers.
Such attacks threaten the strength of the Afghan forces as they work to take over responsibility from international troops. Afghan forces are scheduled to take over security responsibility for the entire country sometime next year.