AN investigation into potential wrongdoing after a motorist was killed in a crash with an unmarked police car is still ongoing.

The 53-year-old, who has not been named, died a few days after the collision on the northbound A449 near Hartlebury on May 28.

The Independent Office for Police Conduct (IOPC) launched the investigation into whether the West Mercia Police officer’s driving was in accordance with force policy.

Eye witness Andrea Rea described the collision as “horrendous” and said the police vehicle was “smashed up at the front and the other vehicle was on its roof”.

The ambulance service said the casualty had suffered a cardiac arrest, and was initially treated at the scene by an off-duty doctor and nurse.

An IOPC spokesman said the officer, who has not been named, was responding to an emergency call, though he could not confirm if the sirens were being sounded.

“Our investigation follows a referral from West Mercia Police.

“We are investigating whether the manner of the police officer’s driving was in accordance with force and national policies.

“We have made contact with the man’s family to explain our involvement.”

The spokesman said the investigation could go on for months.

The two officers in the unmarked car received no injuries following the crash at Doverdale Lane Junction at 3.30pm and were not required to go to hospital.

At the time, a spokesman for West Mercia Ambulance Service said: “We treated a man who was found to be in cardiac arrest.

“An off-duty doctor and nurse had already commenced CPR on our arrival.

“With the help of advanced life support, crews were able to successfully restart the man’s heart.

“He was then airlifted to Queen Elizabeth Hospital but remained in a serious condition,” he added.

Chief Inspector Sharon Cannings initially confirmed to the Worcester News the incident has been referred to the IOPC.

West Mercia Police has said it does wish to comment with the investigation ongoing.