Faster trains between Swansea and London could be running by 2018. The line's electrification is part of an almost one billion pound plan by Network Rail to upgrade the country's railways. Improvements are also planned for the route along the north Wales coast. Here's Carl Edwards.
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Feeling humid with heavy showers and thunderstorms moving north overnight into Sunday.
Four people, including three children, were taken to hospital to be checked for smoke inhalation.
Heavy rain and thunderstorms will affect many parts of Wales this weekend - particularly during Saturday evening.