A teenage motorcyclist suffered a serious head injury in a smash with a car.
The 19-year-old was taken to hospital after his green Kawasaki EX650 motorbike collided with a white Audi A3 at around 1pm on Friday (November 15.)
He remains in hospital in a stable but critical condition.
Police are now appealing for anybody who witnessed the accident on Wigan Road in Leigh, to come forward.
They are particularly keen to speak to anyone who saw the collision or either vehicle in the area beforehand
Detective Constable Emma Kennedy of GMP’s Serious Collision Investigation Unit, said: "We are appealing to anyone that might know something about this collision.
"If you witnessed the collision, or have dash cam footage from around the time which shows a Green Kawasaki Motorcycle or a White Audi A3 travelling on Wigan Road, please contact us."
Anyone with information should contact police by calling 0161 856 4741, quoting incident number 1286 of 15/11/19.
Alternatively, information can be given anonymously to the independent charity Crimestoppers on 0800 555 111.