Commuters and holidaymakers faced travel disruption this morning due to a signalling fault causing issues with services to and from London Paddington.
Heathrow Connect services were suspended but have now resumed, however, delays of up to 10 minutes will continue as services return to normal.
National Rail said it anticipates a good service will be operating by 10.30am.
#LondonPaddington - Trains are disrupted because of a fault with the signalling system. Great Western Railway and Heathrow Express (1)— National Rail (@nationalrailenq) August 7, 2017
#LondonPaddington -services may be delayed by up to 10 minutes. Heathrow Connect are unable to run. (2)— National Rail (@nationalrailenq) August 7, 2017