There will be more significant disruption affecting First Great Western services between Slough and London Paddington today.
A fire near Paddington yesterday caused damage to line side equipment in the Hayes area which meant only two of the four railway lines being available for use.
First Great Western is operating a significantly reduced service between Reading and London Paddington which it predicts will last until at least noon.
Today's disruption comes after a day of cancellations and delays yesterday.
It has suggested alternative options to travel to the capital:
Full details of the alterations can be found at www.journeycheck.com/firstgreatwestern
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