A crash on the M25 is causing severe delays on the A127. 

The collision happened on the anticlockwise carriageway near to junction 28 at Brentwood. 

It means queues have formed back to junction 29 where the M25 meets the A127. 

AA's traffic map shows there are delays as far back as Noak Bridge on the westbound side of the A127. 

It says the delays are 'severe' and drivers should add an extra 12 minutes onto their journey as a result. 

Delays are also being reported on the A127 westbound between Rayleigh Weir and the Fairglen interchange.

More to follow