THE M1 has now completely re-opened after an earlier collision involving seven vehicles.
A 55-year-old man from Bedfordshire, the driver of the blue Vauxhall Corsa, was airlifted from the scene of the incident – close to Junction 14, heading northbound.
He remains in Addenbrook Hospital in a critical condition.
Six other people, all women, sustained minor injuries in the collision. They required treatment at Milton Keynes General Hospital. They included a 35-year-old driver of a grey Citreon Xsara, a 44-year-old driver of a silver Mercedes C220, a 59-year-old driver of a Toyota Hilux and her 37-year-old daughter, and a 49-year-old driver of a Vauxhall Astra.
A 43-year-old man, the driver of the green Volvo lorry, has been arrested on suspicion of dangerous driving. He remains in police custody.
Emergency services are no longer at the scene.
Anyone who witnessed the collision should contact PC Garry Fortnum at the Milton Keynes Roads Policing base on 101.
If you don’t want to speak directly to the police, you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at crimestoppers-uk.org
No personal details are taken, information is not traced or recorded and you will not go to court.