Three teenagers and a woman have been arrested on suspicion of murdering a 17-year-old boy in north London.
Mayor's new pollution rules
New rules on vehicle pollution are in place across London from today.
You could face a £200 fine if the vehicle is more than 10 years old and doesn't meet legal limits.
A campaign to turn off engines if you're in a queue begins later this month.
Four burglars have been jailed for a total of 64 years for injuring a university lecturer from Wimbledon so badly he was left unrecognisable.
A man who sexually assaulted and stole from women who had been walking alone in The City late at night has been jailed for 10 years.
A former police marksman has denied murdering robbery suspect Azelle Rodney in north London.
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