Three police officers have been taken to hospital after a van they were carrying a prisoner in crashed with a car.
The police carrier collided with a Range Rover at the junction of Great Homer Street and Wilbraham Street in Liverpool at about 10:10 BST.
Merseyside Police said the condition of the officers was «unknown» but the prisoner suffered minor injuries.
The Range Rover’s occupants are also believed to have minor injuries.
Appealing for information, a force spokesman said the area around the crash had been cordoned off and drivers were being asked to avoid the area.