A baby was delivered by security guards at Canary Wharf.
Daphne Bolus gave birth to the baby boy who has been named Matthew John Bolus.
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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.