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Services have returned to normal after earlier delays at Tonbridge Railway Station.
A signalling problem caused disruption to London-bound trains, as well as services between Tonbridge and Sevenoaks.
A spokesman for Southeastern said: "Services through the station are returning to normal but some services may still be delayed by up to 20 mins or revised."
Services running through the station to Tunbridge Wells, Hastings, Ashford, Maidstone West and Paddock Wood could also be subject to delays.
Coastbound services were not delayed.
Disruption was expected to last until 12.30pm.