The terrifying moment a car smashed into the central reservation after being hit by another vehicle has been caught on dashcam.

A driver is seen using the inside lane on the coastbound M20 near Junction 4 for Leybourne to undertake a car before colliding into the side of a red Fiat 500 in the outside lane.

The Fiat then crashes into the concrete barrier separating the two carriageways – and almost rebounds into the path of a lorry.

A witness who captured the incident at about 6.30pm on Friday on their dashcam told KentOnline he spotted the driver “snaking in and out of traffic” seconds before the accident happened.

He said: “I looked in my wing mirror and I saw him and I thought ‘he is going to hit somebody’.

“As I thought that, he hit the guy in front.”

The driver of the Fiat was able to regain control of his car and move to safety near the hard shoulder.

The witness, who asked not to be named, continued: “He rang for recovery and I waited with him.

“I called the police and another lady said she called the ambulance.

“The driver who hit him just carried on. We have no idea where he went.”

After a trip to A&E with a stiff neck, it’s understood the driver of the Fiat was OK and didn’t sustain any further injuries.

Police confirmed they received a call at 6.35pm and are investigating the incident.

A spokesman from the force said: “It is alleged that one of the vehicles involved in the collision failed to stop and left the scene.

“The call handler established there were no injuries and immediate police attendance was not required.

“The driver of a damaged Fiat was asked to provide any dashcam footage of the incident.

“This has since been received by officers and an investigation is ongoing to identify the driver of the vehicle which left the scene.”