A teenager has been arrested on suspicion of causing injury by dangerous driving after four pedestrians were ploughed down by a car in the early hours on Sunday.

Footage shows a crowd of people screaming as a Blue Ford C Max rams into them outside The Courtyard nightclub in Newport, south Wales.

Injured people can then be seen lying on the floor as the car fled the scene on Cambrian Road at 5.30am.

Two women are reported to have sustained potentially life-changing injuries from the crash, as the other two victims - a man and woman - are also being treated in hospital.

The vehicle was later found dumped and burnt out on Magor Street, which is around two miles away from the crime scene, as a video clip shows the car ablaze.

On Sunday afternoon police arrested an 18-year-old man, but officers say the investigation is still ongoing.

A man has been arrested after a car ploughed into a crowd of revellers and injured four pedestrians before fleeing the scene and torching his car early on Sunday morning in Wales

Footage shows a crowd of people screaming as a Blue Ford C Max rams into them outside The Courtyard nightclub in Newport

Injured people can then be seen lying on the floor as the car fled the scene on Cambrian Road at 5.30am

The shocking and graphic video began circulating on social media on Sunday. The clip begins as several men surround the car, some banging on the windshield.

The driver can be seen hitting one person, leaving them motionless on the ground, before the driver reverses the car, running them over.

Iftekhar Haris, who manages The Courtyard where the incident took place, told Wales Online: 'This is a very busy road on a Saturday evening and basically this road here is a road that is closed during the day but for some strange reason it's open during the evening when it should be closed. It's absolutely crazy.

'Initially it would have just been a person trying to get through … but what happened is he actually hit a person and then it turned into almost like a mob who went after the vehicle and the driver of the vehicle.

'This situation got quite bad where people were basically attacking the vehicle because the vehicle had actually hit someone.'

The vehicle was later found dumped and burnt out on Magor Street (pictured), which is around two miles away from the crime scene, as a video clip shows the car ablaze

At the crime scene this morning, photos appear to show pieces of the car on the ground

He continued: 'Then the unbelievable happened, where the driver actually went across onto the pavement and hit two girls, two innocent girls, who were just sat there at the end of the night … and hit them, not only once, but actually reversed back, and I don't know whether it was intentional or not, but actually went and hit the person a second time.

'It was horrific. It's something that you don't want to see on any street.'

At the crime scene this morning, photos appear to show pieces of the car on the ground.

The Welsh Ambulance Service said that they were called at 5.30am to Cambrian Road in Newport, Wales.

Four ambulances responded to the scene on Cambrian Road, which is located in the city centre.

Part of the road is now closed and police are present at the cordoned-off scene as the investigation continues.

Police arrested an 18-year-old man on suspicion of causing injury by dangerous driving

Two women are reported to have sustained potentially life-changing injuries from the crash on Cambrian Road, Newport, as the other two victims - a man and woman - are also being treated in hospital

Four ambulances responded to the scene on Cambrian Road, which is located in the city centre

Part of the road is now closed and police are present at the cordoned-off scene as the investigation continues

Superintendent Glyn Fernquest said: 'This is a shocking incident for everyone involved. Specialist officers are currently investigating and are appealing for information in relation to identifying the driver of this vehicle.'

He continued: 'I'd like to just reassure the public that this incident is not believed to be terror related and has no links to the Newport marathon that is taking place this morning.

'Anyone who is taking part in the marathon should carry on with their arrangements as planned.'

The incident occurred hours before a marathon and a 10k were scheduled to take place in the city, which continued as planned.