INVESTIGATORS have met with the families of the four men who died in a crash last week as their inquiries continue.

The Independent Office for Police Conduct (IOPC) has provided an update after a pursuit took place between an unmarked police car and a grey BMW on August 2.

The short pursuit ended when the car containing 21-year-olds Murtza Chaudhry and Arbaaz Hussain, 20-year-old Zeeshan Khalid and Tayyab Siddique, aged 22, hit a tree on Toller Lane at 5.30am. All four men died at the scene.

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The IOPC say they have now reviewed dash cam footage found in the unmarked police car, received more detailed accounts from the officers in the car and reviewed accounts from officers in a marked police car, which later attended the scene.

IOPC Regional Director Miranda Biddle said: "The evidence gathered by the investigation to date indicates that a marked police car passed by the unmarked police car shortly before the BMW.

"However, we understand the marked police car was not involved in the pursuit but did attend the scene after the collision, to provide assistance.

"The time between the officers in the unmarked police car noticing the BMW and them arriving at the scene of the collision was approximately one minute. Our investigation will establish the timings and direction of the pursuit.

"There continues to be no indication that any police vehicle came into contact with the BMW. However, all of these matters remain under investigation and I would urge anyone with any information or who witnessed these events contact us on our witness appeal line.’’