A post-mortem has confirmed that a 16-year-old died from stab wounds after an attack in Pimlico.Police are continuing to appeal for witnesses to the incident near Lupus Street on Sunday evening.It's believed the victim, Hani Abou el Kheir, was attacked by several youths.
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Paramedics were on standby outside the police cordon as armed officers stood by the property.
A team of researchers has taken samples from the ten busiest London Underground lines to work out which are the dirtiest.
The action comes on top of an emergency timetable which has seen hundreds of trains a day being axed.