A man is fighting for his life in hospital after a serious crash on the A21.

The Lamberhurst bypass at Tonbridge was shut after three vehicles collided just after 6pm.

Two of the patients were described as "walking wounded" but two were trapped when emergency crews were alerted.

A woman was assessed by paramedics and was able to get out of one of the cars herself, but a man in his late 30s had to be cut free by firefighters.

He was then flown to a London hospital in a critical condition.

Firefighters from Kent and East Sussex left the scene just before 8pm.

Police remain at the scene to carry out an investigation into how the crash happened.

A spokesman said: "Police are at the scene of a serious road traffic collision.

"Officers were called to the A21, Lamberhurst Bypass, Tonbridge at 6.07pm on Sunday, 3 June 2018.

"Three cars were involved in the collision. A man has suffered life threatening injuries and was airlifted to a London hospital.

"Officers from the Serious Collision Investigation Unit are investigating the circumstances of the collision. Witnesses are asked to contact them on 01622 798538 quoting reference 03-1100."