A fourth person has died in an horrific quad bike crash in West Yorkshire.

Three people were killed in the early hours of today when the quad bike all were riding was in collision with a sports car near Hemsworth.

It has now been revealed a fourth person, a man, suffered serious head and back injuries in the crash and died some hours later in Leeds General Infirmary.

Police confirmed all four - two men aged 20, a woman aged 18 and a teenage girl aged 16 - had been on the quad bike.

Detectives have arrested two young men who were in the car.

Police made an appeal for witnesses following the fatal crash A6201 between Upton and Hemsworth. The road is to remain closed until tomorrow.

Officers were called at 12.34am to the collision between a bronze Nissan 350z sports car and the quad bike.

The two men aged 21 and 22 from the Nissan were arrested on suspicion of dangerous driving in connection with the collision and remain in police custody.

Det Chief Insp Richard Holmes, from West Yorkshire’s Homicide and Major Enquiry Team, who is leading the enquiry, said: “Clearly this has been a very serious and tragic incident with multiple casualties and enquiries are expected to be ongoing on that part of the A6201 for the majority of the day.

“The road will remain closed while emergency services continue working at the scene and drivers are advised to avoid the area.

“We are appealing for witnesses and I would like to speak to anyone who saw either the collision or the driving of the quad bike or Nissan.

“I want to hear from anyone who may have seen either the unregistered quad bike or the Nissan car being driven around the streets of Hemsworth on Saturday evening or immediately before the crash.

“Anyone who has information is asked to contact the Major Collision and Enquiry Team on 101.”