Many trains between Clapham Junction and Waterloo are being cancelled this morning due to a signalling failure that occurred last night.
The disruption could continue until at least 8.30am, according to South West Trains.
The South West Trains website states: "A signal failure has occurred overnight between Clapham Junction and London Waterloo.
"Thankfully, we have been able to identify the issue quite rapidly, and we will be able to rectify the fault before it causes too much disruption.
"Unfortunately, a number of early services will have to be cancelled to allow our engineers time to fix the issue.
"We are very sorry for the disruption you may experience this morning."
Let South West Trains know how your journey was by emailing customerrelations@swtrains.co.uk.
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