Chelsea have taken disciplinary action against John Terry after he was found guilty of racially abusing QPR defender Anton Ferdinand, but the club say the internal sanctions issued "will remain confidential".
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Armed officers have been patrolling on the London Underground but this is the first time they will travel on trains outside the capital.
A post-mortem report found no traces of drugs or alcohol, and the evidence suggests Simon Brown was not taking photos.
The masked men used an angle grinder to tear through the lock.