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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A post-mortem report found no traces of drugs or alcohol, and the evidence suggests Simon Brown was not taking photos.
The masked men used an angle grinder to tear through the lock.
Doing as little as possible in the first minute helps people regain control of breathing and increases chances of survival, says the RNLI.