Two teenagers have been arrested on suspicion of murder after a man died after a collision in central Manchester in which a car made off from the scene. Two males aged 15 and 19 were detained after a black Audi A3 was located by officers in Lancashire. Police believe the victim, a pedestrian aged in his early 20s, might have been involved in an altercation with the occupants of a vehicle moments before the collision in the early hours of Sunday. He was pronounced dead at the scene on Deansgate, Greater Manchester police said. Officers had been called shortly after 3am by members of the north-west ambulance service following a report of a road traffic collision involving a vehicle and a pedestrian, in which the car made off from the scene. Supt Arif Nawaz, of GMP’s city of Manchester division, said: “First and foremost, our thoughts are with the man’s family and friends who are understandably devastated and we immediately launched an investigation to get the answers they rightly deserve. “At this stage, we believe the man may have been involved in an altercation with the occupants of the Audi on foot moments before the collision occurred. A number of lines of inquiry have been followed up already overnight which has then led to the arrest of two males in Lancashire on suspicion of murder. “A cordon remains in place and officers are at the scene doing CCTV checks, taking statements and gathering as much evidence as possible so there may be delays on the roads in the area. “We would ask that anyone who may have seen anything, or anyone who may have seen the black Audi before or after the collision, should get in touch as the smallest bit of information could assist with our investigation.”