An 18-year-old man has been arrested on suspicion of murdering Leonne Weeks, 16, who was found dead on a path in Rotherham.
Boris Welcomes Mobile Coverage On Tube
Boris Johnson says extending mobile phone coverage to underground sections of the Tube network is "the way to go".
A Chinese telecoms firm has offered to install the 50-million pound network free of charge as a gift for the 2012 Olympics.
The Mayor's also dismissed concerns that introducing a mobile phone network on the tube could increase the chance of a terrorist attack.
It comes as the Mayor's office has released figures that he says show the chances of being a victim of crime on London's transport network is at a 6-year low.
The statistics show that most crimes on buses, trains, trams and tubes have fallen.
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A man has been fined £1,800 for flying drones over Parliament, near Buckingham Palace and over football stadiums.
Government to investigate after some restaurants accused of withholding tips
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