Thames Valley Police is currently at the scene of a collision on the A4, Bath Road, Reading.
Two officers, who were on duty at the time, were travelling on the A4, Bath Road, to the west of Reading, when the police car they were travelling in was in a collision.
It happened at the junction of Haden Square and Bath Road at around 5.50pm today (7/7).
One of the officers sustained a serious injury and was taken to hospital for treatment, where he remains in a stable condition at this time.
The other officer has sustained minor injuries.
No other vehicle was involved in the collision and no-one else was injured.
The road was closed but has now partially re-opened.
Superintendent Colin Hudson, local police area commander for Reading, said:
“Our thoughts are with these two officers, their families and their colleagues.
“If anyone has any information relating to this incident, we would ask that they call the Thames Valley Police non-emergency number on 101 quoting reference 1050 (7/7) or make a report online.”