POLICE investigating a hit-and-run crash which left a man critically injured are appealing for witnesses.

Officers received a report that that a 42-year-old man has been hit by a car on Seaham Road, in Houghton-le-Spring, at 9.40am on Friday.

The car was believed to be in convoy with a second car and both left the scene leaving the man seriously injured in the road. He was taken to hospital where he remains in a critical and life-threatening condition.

Detectives are carrying out inquiries and appealing for any witnesses, in particular they would like to speak to anyone who saw the two vehicles - a white Seat and silver Golf and their occupants.

Six people have been arrested. Two men, aged 19 and 38, remain in police custody, while two men aged 29 and 37 and a 37-year-old woman have been released under investigation.

A 35-year-old man was released with no further action taken.

Detective Chief Inspector Lisa Theaker said: "This was a serious incident that has left a 42-year-old man in hospital in a critical and life-threatening condition.

"It is important we find out what happened so those responsible can be dealt with.

He added: "We are keen to speak to members of public in the area at the time of the collision.

"In particular if anyone saw the vehicles or occupants in the area either before or after the incident we would like them to come forward and speak to us."

Anyone with information should contact Northumbria Police on 101 quoting reference 1159 020617.