UPDATE: Disruption not expected to end until 8pm
A signalling problem near Orpington Station is causing delays this evening.
Trains running from Orpington towards Sevenoaks are the worst affected.
Southeastern say their services may be diverted to a different route while engineers deal with the problem.
Trains may be delayed up to 15 minutes or revised.
A normal service is expected to resume at 6.30pm.
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