Shocking footage has emerged of a driver being attacked by a biker gang on a highway in San Francisco, USA. <br /><br />The video, captured on Thursday on Highway 101, shows a dozen people riding dirt bikes and an all-terrain vehicle chasing a white Toyota Camry and forcing the driver to stop.<br /><br />Then, they can be seen surrounding the vehicle while one of the gang beats the driver up.<br /><br />"I have only lived in SF for 18 months, but this is the 3rd time I've seen this group of unlicensed dirtbikes riding around the city," the filmer wrote online.<br /><br />"Me and two other vehicles stopped to help the man, laying on the middle of the offramp."<br /><br />"He clearly had a broken leg, bloodied face, and road rash on his arms. He was in agony," he added.<br /><br />"The tow truck driver had medical training and attended to the man, and I called 911."<br /><br />"The man who was assaulted is a Lyft driver (according to the sticker on his windshield), and it appeared he was on duty, because he had an iPad on and mounted on his dash," he continued.<br /><br />"He was the only person in the vehicle."<br /><br />Reports say the driver was taken to hospital with a broken leg and other non-life-threatening injuries.
