Metro police are searching for three people that attacked a taxi driver late Thursday night. The incident happened just after 11 p.m. on Millwood Drive in south Nashville. Police told Nashville's News 2 an altercation broke out when a group of passengers didn't want to pay the fare. One of the passengers then hit the cab driver over the head with a pistol, before they stole his car keys and took off on foot. The cab driver was taken to Southern Hills Hospital with non-life threatening injuries. No suspect information was immediately released. Refresh this page for updates on this story.