Trains running between Ipswich and Felixstowe have been cancelled this evening and due to a higher than usual number of broken down trains.
Operator Abellio Greater Anglia said it expected delays to continue until the end of tomorrow (Friday).
All trains running between Ipswich and Felixstowe, in both directions, are affected.
A bus is running between the two towns as a replacement service, which will extend journey times by around 40 minutes.
Passengers travelling to Westerfield should instead use an Ipswich to Lowestoft route, which will stop additionally at Westerfield this evening.
A further update is expected at around 7pm.
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