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.
More top news
Wednesday's Pollen Forecast
Thousands of troops could be sent out to protect key sites and events after the Manchester attack. Here's everything you need to know.
Wednesday's weather for the west of the region