Terrible aftermath of crash that left two officers in unmarked police car trapped following police chase Crash happened between the Audi and the unmarked BMW at 3.10am today Force of the impact sent the cars crashing into the wall of a building The Audi had failed to stop for another police car moments before Police watchdog IPCC now investigating the incident in West Yorkshire This is the terrible aftermath of a crash which left two police trapped inside their unmarked vehicle. The force of the impact between the Audi - which had failed to stop for nearby officers - and the unmarked BMW roads policing car sent the cars crashing into the wall of a building, in Horncastle Street, Cleckheaton, West Yorkshire. A police spokesman said the Audi had failed to stop for police in a car in the nearby village of Scholes, and had then made its way to Cleckheaton. Two police officers had to be freed from the wreckage of their unmarked car following a chase with a car that had failed to stop The force of the crash between an Audi and the unmarked BMW roads policing car sent the cars crashing into the wall of a building, in Horncastle Street, Cleckheaton, West Yorkshire A police spokesman said the Audi had failed to stop for police in a marked car in the nearby town of Scholes, and had made its way to Cleckheaton The unmarked BMW had been searching for the car in the Clackheaton area when the crash happened at about 3.10am today. Police watchdog the Independent Police Complaints Commission (IPCC) has been informed and has launched an investigation into the incident. A West Yorkshire police spokesman said they were unable to say whether the first police car had been pursuing the Audi at the time, because it formed part of the investigation by the IPCC. They were also unable to answer questions about why the car had been ordered to stop by police, and whether the first car was a marked police car. A spokesman said officers had been cut from the wreckage following the crash. He added: 'The Police vehicle was driven into the wall of a building by the crash, injuring a male Police Officer and a male Special Constable inside. Both were freed from the vehicle and later taken to Leeds General Infirmary for treatment to non life threatening injuries. A West Yorkshire police spokesman said officers had been cut from the wreckage following the crash The force of the impact has left debris strewn over a wide area including the engine which was thrown from the Audi A 25-year-old Bradford man who was a passenger in the Audi was taken to Bradford Royal Infirmary for treatment to a non life threatening chest injury. The driver, a 23-year-old Bradford man who was located near the scene, was taken to Pinderfields Hospital with a serious but none life threatening injuries. Both men have been arrested in connection with the incident and enquiries remain ongoing.