More than 30 fire fighters are tackling a blaze at an industrial estate in Rainham.
Firefighters were called to the site at 10.30 and 30 fire engines are at the scene.
The fire took hold in a recycling plant at the site and is still being tackled.
There have been reports that smoke from the blaze can be seen from as far away as Canary Wharf.
Crews from Wennington, Barking, Dagenham and Hornchurch are at the scene.
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