Motorists are being urged to avoid Kensington Road in Northolt after a road traffic collision on Wednesday (September 13) afternoon.
The incident has led to the temporary closure of Kensington Road and the Southall slip from the target roundabout.
A spokesman from Met Police said: "Please expect delays and avoid [the] area where possible."
A photo from an eye witness shows a car has overturned on the road.
Drivers have been warned to avoid the area and use alternative routes.
We'll be bringing you updates on the incident as we get them.
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Roads remain closed
For those who missed it, officers have been taken to hospital with minor injuries after their unmarked police car flipped over earlier this afternoon.
Currently, Kensington Road and the Southall slip on the target roundabout remain closed.
We’ll update you when the road reopens - in the meantime, you can read more about the incident here.
Bus routes return to normal
Officers taken to hospital
A spokesman from London Ambulance Service (LAS) said the two officers involved have been taken to hospital
[LAS] were called today at 1.58pm to Kensington Road, Northolt to reports of a road traffic collision.
We sent an ambulance crew and an incident response officer to the scene.
We treated two men at the scene for shoulder injuries and took them to hospital.”
Traffic is busy in the area at the moment, avoid if possible
For those just joining us, we’re bringing you live updates after an unmarked police car overturned in Northolt today.
Officers inside the car, which overturned during a chase, escaped with minor injuries.
Road closures remain in place on Kensington Road and on the Southall slip from target roundabout.
We’ll bring you updates on the closures as we get them.
Buses are being diverted while the scene of the collision is investigated.
A spokesman for the Brigade said they were called at 2.02pm to reports of the collision.
Firefighters left the scene at 2.13pm.
Dolphin Road junction
According to London Fire Brigade, the collision took place at the junction of Dolphin Road.
Ambulance service in attendance
London Fire Brigade and London Ambulance Service are on scene and Kensington Road remains closed at both ends.
This is to allow Roads and Transport Policing Command to investigate the circumstances leading up to the accident.
Picture from the scene
Officers sustained minor injuries after the police car overturned in Northolt.
Met Police statement
A spokesman from Met Police said no police officers are seriously injured.
At 13:52 hours an unmarked police vehicle was involved in an authorised pursuit as it travelled along Kensington Road, Northolt.
During which the unmarked vehicle has collided with street furniture and ended up on its roof.
There were no other vehicles involved and no members of the public were injured.
Both officers have minor injuries but exited the vehicle immediately unaided.
Picture from the scene
Local resident Caroline Quish captured the overturned police car earlier in Kensington Road.
Unmarked police car overturns
There are currently road closures in place after an unmarked police car overturned during an authorised pursuit in Northolt.
Kensington Road and the Southall slip from target roundabout are temporarily closed.
Motorists are being urged to find alternative routes and expect delays.
We’ll be bringing you live updates as we get them.