Around 70 firefighters are tackling a blaze at a factory in Greenwich. Smoke can be seen across south-east London. There are swimming pool chemicals involved and people in the vicinity are being advised to keep windows and doors shut.
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Soldiers will replace armed police at many sites after security experts warned the Government that another terrorist attack may be imminent.
The threat level has been raised to critical by MI5's Counter-Terrorism Analysis Centre.
Sam Allardyce has quit as manager of Crystal Palace and retired from football management.