London Fire Brigade has warned residents near the Docklands not to be alarmed by the number of response teams in the area, as part of it's largest ever training exercise. Two hundred and twenty emergency services teams are there to test the response to an air crash.
The scene has been simulated with a real Boeing 737 aircraft, buried in tonnes of rubble. One hundred actors are playing the part of casualties.
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The desk and chair where Charles Dickens sat to write his final novels have been bought for the nation using a national heritage grant.