Trains to London Paddington cancelled due to 'incident'
Great Western Railway has issued a statement on its website apologising for the disruption.
The cancellations are affecting passengers travelling from Oxford and Didcot Parkway to London Paddington.
Some passengers are now arriving at Waterloo instead of Paddington.
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The statement says: "Due to the emergency services dealing with an incident between London Paddington and Reading the line is blocked.
"Train services running to and from these stations will be cancelled or delayed by up to 100 minutes. Disruption is expected until 11.45am.
"Chiltern Railways are conveying passengers via any reasonable route until further notice. Arrangements have been made for Great Western Railway rail tickets to be accepted for these journeys.
"London Underground are conveying passengers via any reasonable route until further notice. Arrangements have been made for Great Western Railway rail tickets to be accepted for these journeys.
"South Western Railway are conveying passengers via any reasonable route until further notice. Arrangements have been made for Great Western Railway rail tickets to be accepted for these journeys."
It is not yet known how the line was blocked.
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Andy is the Trade and Tourism reporter for the Oxford Mail and you can sign up to his newsletters for free here.
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