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Trains are running again between Sevenoaks and Orpington after cancellations this afternoon due to signal problems at Dunton Green.
Southeastern had said it was arranging for buses to replace trains but the company has just revealed Network Rail has fixed the issue.
Problems began at about 12.30pm leaving some passengers stuck on trains.
The company said delays are expected on the line until 3.30pm.
If your journey has been delayed by 30 minutes or more you may be able to claim Delay Repay compensation from the train company.