Campaigners are holding a final demonstration at the Department of Health today over plans to close Lewisham Hospital's A&E department. Hundreds are expected to protest over the cuts which would also affect the matertiny unit.
A petition of around 40 thousand signatures will be handed to health secretary Jeremy Hunt.
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Those vying to be named the new Met Police Commissioner will speak to the Home Secretary, London Mayor and Policing Minister.
Monday's temperature was recorded at Kew Gardens, west London, where visitors enjoyed temperatures 10 degrees warmer than Milan at 8C.
The Central and Waterloo and City lines will be affected, with other stations and lines likely to be busier than normal.