This was caused by signalling cable faults between Woking and Surbiton stations that were serious enough for us to advise you not to travel on our network.

Network Rail engineers worked hard through the morning to fix the problem.

By 11am the line was open again, nonetheless many of you will have had delayed and crowded journeys for the rest of the day.

We know it’s not the service you expect or deserve, and we are working hard to improve performance.

Once again, we’re sorry, and thank you for your patience yesterday.