A strike ballot of Southern Railway workers by the biggest train driver’s union has been suspended because of "technical difficulties".
Long suffering commuters will face yet more strikes tomorrow which will last for three days. Find out how you will be affected here.
Angry commuters will stage a protest over weeks of disruption at the hands of Southern Rail.
If you were delayed by this morning’s issue at #ThreeBridges you can claim delay repay here: http://t.co/mKWZ3cDVTI
A spokesman for Southern Railway said the delays at London Bridge were caused when a train was signalled into the wrong platform at the station.
The 10-carriage train arrived at a platform intended for trains with eight carriages.
The spokesman said: "It meant the train had to be sent back along the track, which caused congestion."
Passengers faced delays of about 20 minutes before services returned to normal at 8.30am.