The number of London's tubes running on time has hit a record high, according to new figures from Transport for London. In 2012/13, delays on underground routes through the capital dropped by 20 per cent.
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Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
The family of Oliver Dearlove urged people to "think again" before using their fists, as the man who killed him began a six-year jail term.
London Fire Brigade took Southwark Council to court on four charges in relation to safety breaches at Lakanal House in Camberwell.