Andrew Sissions from Hackney Council tells ITV London that the properties on Amhurst Road were deemed to be so dangerous that they had to pull people out of a restaurant in the middle of their meals.
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The teenager, who played football for Uganda's youth team, was found injured in the communal area of a block of flats on Wayford Street.
Almost half of London's LGBT+ community have felt threatened in the last year because of their sexuality, according to a new survey.
Mr Charles died in hospital after he was chased by a police officer into a shop in Dalston and restrained.