The Independent Police Complaints Comission (IPCC) has published a report highlighting failings in the working practices of the Southwark Sapphire Unit - a police department dedicated to investigating rapes and other cases of serious sexual violence.
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Kent Police said they believe the driver had been asked to leave the club following an altercation.
Emergency services were called to South Street in Enfield this morning, but the victim was pronounced dead around 30 minutes later.
Scores of flights were cancelled and drivers were warned to take care as the "mini beast from the east" swept in.