Delays of up to 20 minutes on South West Trains between between Exeter St Davids and London Waterloo and between Weymouth and London Waterloo due to speed restrictions between Raynes Park and Wimbledon.
Exeter/Salisbury services are start/terminating at Basingstoke. London Underground accepting tickets.
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The blaze in the Greenbank area of the city happened on a street occupied by around 40 caravans.
People across the West Country have been reflecting on a spectacular royal wedding ceremony.
There could be some showers in the East later on.