The emergency services are attending the scene of a collision on the A4 at Waggoners Roundabout in Cranford.
The Met Police were called to the scene at 2.23pm on Thursday (June 1), finding a car in collision with another car.
A spokesman from the Met Police said: "Injuries are not believed to be life threatening or life changing."
Transport for London is advising motorists to expect delays on diversion.
We will be bringing you updates on our live blog.
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Blog closes
As we bring our blog to a close, we can confirm the roundabout has fully reopened and traffic is flowing well.
The south side of the roundabout was closed after police were called to a collision at 2.23pm.
Upon arrival, police found a car in collision with another car.
According to the police, injuries are not believed to be life threatening or life changing.
Injuries 'are not believed to be life threatening'
Police were called to the incident at 2.23pm, finding a car in collision with another car.
A spokesman from the Met Police said:
Injuries are not believed to be life threatening or life changing.
