Police have confirmed an investigation has been launched into the crash involving a police car which closed the East Lancs Road in St Helens.
It was also confirmed today (Wednesday) that the police car involved WAS responding to an emergency call when the collision occured.
Emergency services closed the East Lancs Road between the junction of Rainford Road and Crank Road after the crash happened at Windle Island at around 1.30pm on Monday.
It involved a police car and a white Suzuki Swift.
A passenger in the Suzuki, a man in his 50s, was treated at the scene suffering from shock.
The road was closed for around three hours while council officers cleared up a large fuel spill.
A police spokesman said: “Merseyside Police can confirm an investigation is underway after a collision involving a police vehicle and a car in Windle on Monday, 20 June.
“At about 1.35pm a police vehicle travelling on Rainford Road en route to an emergency call was involved in a collision with a white Suzuki Swift car driven by a man in his 50s.
“He was taken to hospital for treatment for a chest injury and has since been discharged.
“Both vehicles and a set of traffic lights were damaged in the incident.
“Police are appealing to anyone who witnessed the incident to contact MSOC Roads Policing Officers on 0151 777 5747 or Crimestoppers on 0800 555 111.”