The family of a man who was seriously injured in a crash on the M3 are joining police appeal for further witnesses to come forward.

Police were called at 10.22pm on Friday, October 4, to a report that a silver Honda Civic had left the northbound carriageway between junctions 5 and 6 and collided with a tree.

The male driver, 30-year-old Carl Tompkins from Tadley, sustained serious injuries and remains in hospital.

Police believe several motorists, who may have witnessed the crash, stopped at the scene but left without leaving any details.

Officers said they would like to thank everyone who has come forward with information so far, but believe there are a number of witnesses at the scene who are yet to speak to police.

READ MORE: M3 crash: Man seriously injured after car collided with tree

They believe there may also have been people on bridges over the M3 who may have seen what happened.

Mr Tompkins’ family said: "Thank you to those who stopped to help Carl, especially the paramedics and the air ambulance who gave him the best chance. Thank you also to Southampton Hospital Neurological Intensive Care and Basingstoke Hospital Intensive Care for the amazing care that you have given to Carl.

"We also want to thank all those who have already spoken to the police, but we know there may be people with further information who haven't come forward and we would urge them to do so.

"As a family we just want to get some answers to understand the events. No matter how small or insignificant it may seem, your information may fill in the gaps of the night of the collision.

"Our family would like to thank everyone for their support through this extremely difficult time."

As part of ongoing investigation, a 33-year-old man from Basingstoke and a 34-year-old man from St Mary Bourne were arrested on suspicion of causing serious injury by dangerous driving.

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They have both been released under investigation while further enquiries continue.

If anyone has any information or dash cam footage of the Civic or anything relevant to this collision, please contact police.

You can call 101 quoting reference 44240431989, or make a report online using the same reference number at: hampshire.police.uk/tua/tell-us-about/cor/tell-us-about-existing-case-report/

You can also make a report anonymously to Crimestoppers by calling 0800 555 111 or visiting Independent UK charity taking crime information anonymously | Crimestoppers