A 12-year-old boy and his mother are in a serious condition in hospital after coming off a quad bike in Chorley.

The driver of the Quadzilla quad bike, a 44-year-old woman from Chorley, suffered significant head injuries and was taken to hospital where she remains in a serious condition.

Her son, who is from Chorley, also suffered head injuries and was taken to Alder Hey Hospital where he remains in a serious condition.

The incident happened in Carr Lane at 4.10pm on Saturday and police said the quad bike was being followed by a Vauxhall Astra in convoy. The Astra failed to stop at the scene.

However a 30-year-old man from Chorley, was later arrested on suspicion of causing injury by dangerous driving, driving over the prescribed limit for drugs and failing to stop at the scene of a collision. He remains in custody this weekend.

Officers are now appealing for witnesses and said the quad bike was travelling south east towards Melrose Way in Chorley when it lost control throwing both the driver and the 12-year-old pillion passenger from the vehicle.

Sgt Oliver Jones, of Tac Ops, said: “This was a serious collision which has left two people with some significant injuries and I would appeal for anyone who witnessed the incident or who has any CCTV or dashcam footage of the Quad bike prior to or at the time of the collision to get in touch.”

Anyone with information is asked to call police on 101 quoting log number 1113 of August 24.