Monday 6th October 2014 – Last Updated at 1535. Signalling equipment problems between Slough and West Drayton are affecting all four lines. Because of this, a severely disrupted train service is operating between Reading and London Paddington.

Engineers have been working all morning to rectify the fault, but have so far been unsuccessful. At present, they are only able to run four trains per hour in each direction between Reading and Paddington.

Many services will be cancelled and there will be delays of up to 60 minutes affecting those trains which can run. First Great Western strongly advise customers to avoid travelling where possible. Disruption is expected to last until further notice.

Your tickets will be valid on other operator’s services and on alternative routes which avoid the affected area.

For full details of alterations to services, please visit JourneyCheck page. For real-time travel information and the fastest way to contact the First Great Western team, please follow them on Twitter:

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