CCTV shows 12 men attacking youths in Manchester 9 March 2013 Last updated at 13:06 The men's actions were "shameless and shocking," police said Police have released CCTV images of an "unprovoked" attack by 12 men on a group of youths in Manchester. The men pulled up in three cars next to the group in Briscoe Lane, Newton Heath at 14:20 GMT on 2 March. A 15-year-old boy suffered a broken arm and facial injuries requiring stitches after being chased and attacked by up to four men. A 15-year-old girl was hit in the face and suffered a fractured cheekbone and other facial injuries, police said. The men then got back in their cars - a silver Peugeot 306, a black Volkswagen Passat and a dark coloured Vauxhall Astra - and drove off along Briscoe Lane towards Ten Acres Lane, officers said. A force spokesman said it could be a case of mistaken identity linked to a dispute the previous evening in the Newton Heath area, in which neither victim was involved. Det Const Paddy Connell said: "The CCTV footage shows a determined effort by a group of men to get at and assault a number of teenagers. The boy is slight in build and was chased and beaten by burly men. Their actions were shameless and shocking.