Passengers are currently facing disruption to their journeys to London this morning (Monday).
Over-running engineering works at London Bridge are causing delays of up to 30 minutes to services to and from the station.
Southeastern said via Twitter this morning that the disruption is also due to signalling problems at London Bridge which engineers are trying to resolve.
A number of trains have also been cancelled.
Disruption is expected to last throughout the morning.
Visit www.nationalrail.co.uk for up-to-date information.