Disruption on Southern between Uckfield and London Bridge, between Purley and London Bridge and between Gatwick Airport and London Bridge due to earlier signalling problem at Honor Oak Park.
All lines are open, however delays of up to 30 minutes can be expected until around 12:00. Buses replace trains between Uckfield and Crowborough. Tickets accepted on London Underground and Southeastern services. First Capital Connect no longer affected.
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The two new owners of the South West Trains franchise have promised extra seats, new trains and faster journeys for passengers from August.
Monday afternoon's forecast for the east of the region
Monday afternoon's forecast for the west of the region