Extra services will run on the Thameslink route to help people get into the capital. Most weekend services are now eight carriages long, however the four carriage services between East Croydon and Bedford that run on Sundays will be lengthened to eight carriages on Sunday 3 June.
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Holly has the latest weather forecast for the west of the region.
Holly has the latest weather forecast for the east of the region.
The sister of Sean Benton who was found shot dead at an army barracks 23 years ago, says she is determined to find out exactly how he died.