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Disruption between Fareham and Havant / Portsmouth Harbour expected until 16:00 

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Service alteration details

Incident reported: Saturday 23 May 2026 at 13:51

If you would like to follow this incident on X, please useCosham

Last updated

Saturday 23 May 2026 at 14:33

Train operators affected

Route(s) affected

Between Fareham and Havant / Portsmouth Harbour

Description

There is a fault on a train at Cosham, resulting in the line towards Havant / Portsmouth Harbour being blocked.

Trains running between Fareham and Havant / Portsmouth Harbour may be cancelled, delayed by up to 30 minutes or revised.

This is expected to cause disruption until 16:00.

Great Western Railway customer advice:

If your train is cancelled, you may travel on either of the two services before, or two services after, your original train. If these are peak services or less flexible, you can still travel with your original ticket, at no extra cost.

Your ticket can be used at no extra cost on the following services:

  • Southern between Southampton Central and Portsmouth Harbour

South Western Railway customer advice:

Long distance and Mainline services

Services between London Waterloo and Portsmouth via Eastleigh may be revised to only run between London Waterloo and Fareham in both directions.

South and West local services

Services between Southampton Central and Portsmouth & Southsea may be revised to only run between Southampton Central and Fareham in both directions.

How do I get to my destination?

Your ticket can be used, at no extra cost, on the following services:

Rail services:

  • Southern between Southampton Central and Portsmouth

Bus services:

  • First Bus routes 1 / 2 / 3 / X4 / X5 / 7 and 8 between Fareham and Portsmouth

  • Stagecoach Buses routes 18 / 19 / 20 / 21 / 23 and 700 Coastliner between Cosham / Havant and Portsmouth

If you need any help with your journey, please speak to a member of staff or use a station help point.

If you would prefer to use local buses to continue your journey please check Traveline. South Western Railway tickets are not valid on local buses unless stated above.

Southern customer advice:

You will need to use an alternative rout to travel and allow at least 30 minutes more time to complete your journey.

If you are travelling now, please make sure to check journey planners and information boards for the latest train information.

Tickets are being accepted at no extra cost on:

  • Alternative Southern services between Portsmouth and Brighton

  • South Western Railway services between Southampton Central and Portsmouth

  • Great Western Railway services between Southampton Central and Portsmouth

Planning your journey:

Southern live departure boards can be found here.

You can view a live map of the network here.

You can also see an alternative route guide here.

If you're travelling in the London area, you can plan journeys on alternative routes by using the TfL Journey Planner here.

The Southern app will also help you plan your journey.

Can you tell me more about the incident?

Unfortunately, a Southampton Central service has developed a fault. The nature of the issue means it can't move, so it's blocking the line through this area towards Fareham.

It's likely that in this case, specialist engineers will need to be sent to site, known as "fitters". Fitters are based in key locations around the network, 24 hours a day, and they are able to attend anywhere on our routes. Once they are on site, progress will be monitored and updates to ensure that the railway can be reopened as promptly as possible.

It may be needed to send another train to tow the defective one away. This procedure, known as arranging a rescue train, will be done as quickly as possible, usually by sending a similar type of train to attach. The combined train will be taken out of use and sent to a depot.

Until the defective train can be moved, train staff will try to find a way to get other trains around the issue. This depends how many lines are available, and whether the signalling equipment is set up to allow trains to be routed around the problem. This is more often the case on our major routes, but not always. They will work with Network Rail's controllers to decide how many more trains can be sent through the area, and if this isn't possible, will see what alternative solutions are available to help you continue your journey.

Check before you travel:

You can check your journey using the National Rail Enquiries real-time Journey Planner.

Compensation:

You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.

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