Network Rail have confirmed that 1,000m of cable has been stolen from the line between Bedford and Bletchley.
A spokesman told ITV Anglia that rail delays would continue for the rest of the day while engineers worked to make repairs.
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Children are being encouraged to read more at an exhibition in Norwich Castle inspired by the writer who created 'How to Train Your Dragon'.
This afternoon is going to remain cloudy with some heavy showers. Highs of 11 degrees C.
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