Passengers on Southern Rail trains can expect delays throughout rush hour between East Croydon and Clapham Junction this evening.
Cancellations, delays of up to 15 minutes and revisions of services will affect the line after trespassers blocked the railway track earlier this afternoon.
Services on all lines were temporarily halted while the trespassers were dealt with and are now up and running again.
However, Southern Rail has warned there is now a "queue" of services while the network gets "back on track."
Normal service is expected to return to the line at 8pm this evening. More information can be found on the National Rail website.
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