Trains between Norwich and London were cancelled due to a fault on the line.
This affected trains from Norwich to London and other stops on the same line.
Trains using this line were cancelled.
This was due to a points failure on the line between Diss and Stowmarket.
Network Rail engineers found that a heater has burnt through a cable and made urgent repairs.
The repair was complete at 9.45am and the line was reopened.
For up-to-date information about the county's roads, visit our LIVE Norfolk traffic map.
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