Police have carried out a series of raids, ahead of this weekend's Notting Hill Carnival, in an attempt to combat potential trouble makers. One hundred and twelve people have been arrested for offences including robbery, theft and drugs possession.
Officers have also seized several firearms, £4, 000 in cash and a Porshe. The focus has been to target gangs and other criminals intent on causing trouble at the carnival.
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Drivers belonging to the RMT union are due to walkout at 9.30pm on Saturday in a dispute over a sacked colleague.
A new opinion poll gives the party an increased lead at the expense of the Greens.
The Rail Minister said it was not a matter of crowd control but passengers "trying to get home after a long day at work".