A police officer is under investigation over the death of a 27-year-old man who was hit by an unmarked police car.

Arthur Holscher-Ermet had been on foot when he was struck by the vehicle in Sussex on Saturday night and was confirmed dead at the scene.

The Independent Office for Police Conduct (IOPC) said he had been driving an Audi which was being pursued by a police car after it came to the attention of officers.

As the pursuit ended, Mr Holscher-Ermert left the Audi and was hit moments later by a different unmarked police vehicle on the A259 South Coast Road.

The police watchdog said it has advised the driver of the unmarked car, who was a police constable, that he is under criminal investigation for causing death by dangerous driving.

He will also be investigated for potential gross misconduct, it added.

IOPC regional director Graham Beesley said they will examine events leading up to the collision and police actions in the immediate aftermath, including reports that handcuffs were used on Mr Holscher-Ermert at the scene.

He said: “It is important we establish why Mr Holscher-Ermert was being pursued by the police including what, if any, information the police had about him or the vehicle he was driving.

“We will also consider whether the actions of officers afterwards were in line with policy and procedure. This will include looking at the aftercare given to him.”

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As part of its review, the watchdog has looked at dashcam footage from a member of the public who was driving in the area at the time.

It is also analysing footage from the police car involved in the collision and body-worn video from officers who arrived at the scene.

Investigators have carried out house-to-house inquiries to identify witnesses and have sought any CCTV footage that might be available.

Anyone with information that might help with inquiries has been asked to contact the IOPC.

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