A motorist died after suffering fatal injuries in an assault following a car crash in Auckland’s Beach Haven on Friday night.

A manhunt is underway as police search for the occupants of a black BMW, believed to have been involved in the crash at the intersection of Tramway Rd and Beach Haven Rd.

Photos from the scene show police blocked Beach Haven Rd, while Fire and Emergency NZ and St John were also attending the incident on the North Shore.

Police said they were “urgently appealing for witnesses” to the incident.

Emergency services were called to the intersection following a crash involving two cars at around 7pm, police said.

“Initial information suggests that the driver of one of the cars was subsequently assaulted by occupants of the second car,” police said.

The driver suffered critical injuries and died at the scene, police said.

“The occupants of the second car left immediately following the assault and police are working to locate them,” police said.

Police are responding to a fatal incident in Beach Haven last evening. Photo / Supplied

The car is believed to be a black BMW sedan, registration CTC411, police said.

Anyone who sees the car is asked to call police immediately on 111, quoting event number P053841960. The vehicle should not be approached, police warned.

Multiple road closures were in place overnight but by first light this morning the road was open and there was no police presence.