Southeastern trains through Lewisham are disrupted this morning due to signalling fault.
Trains from Dartford/Gravesend to London Victoria are cancelled.
Commuters can use London buses and the tube at no extra cost.
The delay was cause this morning at around 6.08am, after trains having to be talked past a signal.
Some services will not call at Lewisham to ease congestion.
Furious commuters took to twitter to air frustrations.
One user said: "This is getting ridiculous. There is clearing something seriously wrong with signalling in the area. Network Rail need to sort it."
Another tweeted: "Same signal as last week the week before the week before that."
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