Rail delays are expected until 11am today between Didcot Parkway and Swindon due to an inspection of the track.
A safety inspection of the track between Didcot Parkway and Swindon is resulting in some lines being blocked.
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National Rail has warned passengers that trains running between these stations may be cancelled or delayed.
Delays of up to 45 minutes are expected until 11am.
National Rail has said tickets will be accepted on CrossCountry services between Cheltenham Spa and Bristol Temple Meads.
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