Delays of up to 45 minutes on First Great Western between Oxford and London Paddington due to problem with lineside equipment at Oxford.
First Great Western advise that a normal service is expected to resume by about 3pm. Also affecting Chiltern Railways and CrossCountry.
More top news
The partner of missing mother-of-four Samantha Henderson has been remanded into custody accused of her murder.
Lucy Verasamy has the latest weather forecast for the east of the ITV Meridian region
Lucy Verasamy has the latest weather forecast for the west of the ITV Meridian region