The signal fault at Lewes has now been repaired but passengers are warned to expect delays as services return to normal, Network Rail has confirmed.
A spokesman for Southern said: “An earlier points failure at Lewes was preventing train services from operating to and from Seaford. The line has now reopened.
“Buses supplement train services between Lewes and Seaford.
“Brighton and Hove buses are accepting tickets between Brighton/Lewes/Seaford and Eastbourne.”
Don’t miss out on all the latest breaking news where you live.
Here are four ways you can be sure you’ll be amongst the first to know what’s going on.
1) Make our website your homepage
2) Like our Facebook page
3) Follow us on Twitter
4) Register with us by clicking on ‘sign in’ (top right corner). You can then receive our daily newsletter AND add your point of view to stories that you read here.
And do share with your family and friends - so they don’t miss out!
Always the first with your local news.
Be part of it.