Trains lines are blocked between Royston and Cambridge due to a fault with the signalling system (Image: Archant)
A fault with the signalling system blocked all train lines this morning between Royston and Cambridge.
Two trains are now running per hour between London and Cambridge, in each direction, while a shuttle train service will run between Kings Lynn and Cambridge only.
Disruption affecting services to and from Cambridge is expected to last until the end of today.
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