ANOTHER man and woman have been arrested and remain in custody in connection with the murder of an 18-year-old in Bradford.

Officers from the Homicide and Major Enquiry Team are appealing for witnesses as enquiries continue into an incident on Broadstone Way, Holme Wood.

The two males, aged 19 and 30, who were previously arrested have been released under investigation.

READ MORE: Police reveal name of 18-year-old who died in crash

A West Yorkshire Police spokesman said: "At around 4:09pm on Thursday, June 3, police were called to reports of a serious road traffic collision on Broadstone Way.

"The incident occurred when a vehicle, believed to be a silver Ford Focus collided with a quad bike.

"The passenger of the quad bike, an 18-year-old male, suffered serious head injuries and was pronounced deceased at the scene.

"The driver, a 19-year-old male was taken to hospital following the collision and remains in a serious yet stable condition.

"Another man and a woman have been arrested overnight in connection with the incident and remain in custody at this time.

"Two males, aged 19 and 30, who were previously arrested and have been released under investigation.

"Enquiries remain ongoing and police are urging anyone with any information to come forward and assist with the ongoing investigation.

"Anyone with any information that could assist the investigation is asked to contact Homicide and Major Enquiry Team via 101 quoting crime reference 13210276071. 

"Information, CCTV and video images which could assist enquiries can also be uploaded to our Major Incident Public Portal for Operation Parryfield at https://mipp.police.uk/operation/13XM020121B28-PO1"

"Information can also be passed to Crimestoppers anonymously on 0800 555 111"