A problem currently under investigation between Clapham Junction and Wandsworth Road is causing disruption to services running between Clapham Junction and Denmark Hill.
As a result, trains may be cancelled, delayed by up to 20 minutes or diverted.
Disruption is expected until 10:00.
Customer advice:
You may use your ticket at no extra cost on the following:
You can find an alternative route map for your journey here.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner
Twitter:
If you would like to follow this incident on Twitter, please use #ClaphamJunction
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.