The incident involved a police vehicle responding to an emergency call and a Skoda Octavia
Two people – a police officer and an occupant of the Skoda – were taken to hospital with injuries which are not life threatening.
The road was closed for two hours causing disruption to traffic.
Enquiries are ongoing to establish the circumstances of the incident.
The Force’s Professional Standards Department are aware.
Police are appealing for any witnesses to contact West Yorkshire Police on 0845 6060606.