A man has been arrested following a horror crash on the 10mph Nonsuch Park road.

Five people were injured following reports a Ford Escort struck a pedestrian before a head-on crash with a BMW.

A driver from Leatherhead has been arrested on suspicion of dangerous driving and causing grievous bodily harm with intent.

At about 1pm on Tuesday afternoon visitors were enjoying a day out in the park when the crash took place.

Police, paramedics and firefighters rushed to the scene before the area was cordoned off while ambulances treated the injured.

A spokesman for the South East Coast Ambulance Service said: "We sent two ambulances, our hazardous area response team and two response cars to a two car road collision that also involved a pedestrian at Nonsuch Park, Ewell Road, Cheam.

“London Ambulance Service also sent responses.

“There were five patients, one serious who we took to St George’s Hospital.

“Two other patients were conveyed by ourselves and LAS to hospital and two patients were treated on scene.”

Police are appealing for information.

A spokesman for Surrey Police said: "We are appealing for witnesses following a collision in Nonsuch Park.

“The collision happened in the middle of park at about 1pm on Tuesday and involved two cars and a pedestrian.

“A Ford Escort hit the pedestrian before being involved in a head on collision with a BMW.

“The Ford driver and two occupants of the BMW were taken to hospital.

“The pedestrian was treated at the scene.

"Officers are appealing for anyone to come forward who saw the incident, including the manner of the driving leading up to the collisions, or has any dashcam footage which may assist the investigation.”

A spokesman for Nonsuch Park confirmed the park has a 10mph limit inside the grounds at all times with the lane access only to get in and out of the car parks.

Epsom and Ewell Council confirmed on Wednesday the cordon had been lifted and the park was open again as normal.

Police have since arrested a 38-year-old man who has been detained under the Mental Health Act.

Anyone who has information about the incident is asked to call Surrey Police on 101 quoting reference PR/P19185189.