In Edinburgh, dozens of old catering carriages are being converted for use on trains from South Wales to London.
It means there will be more room for passengers travelling on peak time services to and from Paddington. First Great Western says it will help to alleviate overcrowding.
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An engineer has died following a jet that crashed at a RAF Valley airbase on Angelsey earlier this afternoon.
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Frosty tonight. Turning cloudier with patchy rain on Wednesday.