The man was taken to Lister Hospital in Stevenage to be treated for a suspected heart attack. (Image: Archant)
There have been long delays on the rail service between Royston and Cambridge today after a man collapsed on a train.
Emergency services were called to Ashwell and Morden railway station where the man, who is in his 60s, had been taken off the train.
The man had suffered a suspected heart attack while travelling from Cambridge and was taken to Lister Hospital in Stevenage, where he remains in a critical condition
An East Anglian Air Ambulance was also called to attend the scene.
Delays on the line between Royston and Cambridge are expected to continue until about 1pm.
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