Around 70 firefighters are tackling a blaze at a factory in Greenwich.
The fire at the premises in Peterboat Close is being battled by 12 crews.
They were called to the scene, off the approach to the Blackwall Tunnel, shortly before 3.30am.
More top news
Joshua beat the older, more experienced boxer in front of 90,000 fans in Wembley Stadium.
The prince attended the rugby match in his role as patron of the Invictus Games Foundation, the official charity for this year's game.
A police officer who spent six days crawling the London Marathon in a gorilla costume has finally completed the 26-mile route.