The collision occurred at about 11.40am this morning, when it is reported that a black Honda motorbike was travelling along Piccadilly Road, Swinton when it has collided with a lamppost close to the junction with Valley Road.
The bike was travelling towards Wentworth Road and the rider of the bike, a 33-year-old woman, has been taken to hospital with life-threatening injuries.
Officers want to hear from anyone who saw what happened, or who saw the manner of driving prior to the collision, to contact them.
Can you help? If so, please call 101 quoting incident number 436 of August23 2016.