Train services running through Shenfield were disrupted because of over-running engineering works which were delayed because of overnight snowfall.
Workmen carrying out maintenance on tracks between Ilford and Romford were hampered by the weather conditions and low temperatures.
The backlog of work went all services running via Shenfield, including trains travelling to and from Chelmsford, were delayed by up to an hour during rush hour on Monday morning.
Both Greater Anglia and Network Rail apologised for the delays.
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