More than half a billion pounds has been spent by local authorities in London on emergency housing since the general election. Councils have been forced to place people in accommodation, such as hotels and B&Bs, after they presented themselves as being homeless.
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The 47-year-old man died shortly after 3pm on Tuesday.
Specialist explosive detection dogs searched through the town examining letter boxes and phone booths for signs of potential devices.
Temperatures reached 29.1C in St James's Park, central London.