Police are appealing for witnesses after a manwas dragged along the motorway as he tried to stop someone stealing his van.
At around 8.30am on Sunday 1stMarch 2015 a lorry overturned on the Warrington-bound M602 slip road justoutside Salford.
The 28-year-old victim pulled his VW Caddy van over to the hard shoulder, thinking that he would be able to assist the driver of the lorry.
He left his keys in the ignition as he went to help, only for the lorry driver to jump into his van and drive off, with the victim still clinging to the vehicle.
The victim was dragged for some distance along the motorway before he fell off and sustained serious head injuries.
The VW Caddy was driven onto the M60 towards Stockport and remains outstanding, but a 43-year-old male is in custodyon suspicion of attempted murder.
Detective Sergeant Julie Connor from SalfordCID said: “The injured man is in a critical condition at hospital.
“We are keen to trace anyone who witnessedthis incident and to recover the stolen VW Caddy van registration numberDY14 FPN.
“Anyone with information is asked to callSalford CID on 0161 856 5351 quoting log number 723 on 01/03/15.