AN investigation has been launched after a police car responding to an emergency call collided with another car.The Ford Focus was travelling along Warren Lane in Stanway, Colchester, when it collided with a Vauxhall Astra at the junction with Church Lane.

AN investigation has been launched after a police car responding to an emergency call collided with another car.

The Ford Focus was travelling along Warren Lane in Stanway, Colchester, when it collided with a Vauxhall Astra at the junction with Church Lane.

The police car had its blue lights on at the time of the accident but officers are now looking into whether its siren was on or off.

The marked car contained officers from Colchester Police Station who were on their way to a domestic incident in West Bergholt.

The 30-year-old male driver was uninjured but the 23-year-old male passenger suffered whiplash injuries and was taken to Colchester General Hospital.

The Vauxhall driver, a 49-year-old woman from Fingeringhoe, was injured by flying glass and was also taken to Colchester General Hospital. Both casualties were released after treatment.

The drivers both gave negative breath tests after the accident.

Sgt Chris Tyler, of Stanway Traffic Police, said a full and thorough investigation would be carried out into the cause of the crash. He appealed for any witnesses to call him on 01206 762512.