National Rail Enquiries says that the disruption is likely to last until at least 10pm.
Passengers are being allowed to use their tickets on buses between London Bridge and East Croydon, Purley and Caterham, on London Overground and London Underground services on 'reasonable routes' and the Tramlink between Beckenham Junction and East Croydon.
We apologise for disruption again tonight. If any minor consolation, we hope at least your experience on the station was improved tonight.
Commuters are facing a fourth night of disruption at London Bridge station. Signalling problems are a causing delays to all Southern services using the station.
Make sure you avoid all the road and tube closures - and find out which services run for free - with our comprehensive guideRead the full story ›
TfL has announced a multi-million pound business plan for buses in the capital.
It includes hundreds of extra buses and 25 million pounds of investment into driver training.
Drivers will learn how to communicate better with customers and respond more quickly to their needs.
A rail union has hit out at comments by the Govia Thameslink CEO, who said he would make it 'more comfortable to stand' in rush hourRead the full story ›
Mick Cash has been elected general secretary of the Rail, Maritime and Transport union to succeed Bob Crow, who died earlier this year, the union announced.
Commuters faced rush hour travel misery on the M25 this morning after 13 illegal immigrants ran out from the back of a lorry in the middle of the motorway.
Surrey Police tweeted that they had all been caught and arrested after the incident between junctions 12 and 13.
Traffic slowed on M25 12-13 due to 13 people seen running from the back of an HGV. All detained and arrested for immigration offences.
People claiming to have seen the incident on their drive to work took to Twitter to describe their shock at what happened:
Wondered why I was delayed on the M25 this morning, only to see a truck load of refugees running in the central reservation! ?
just seen about 15 immigrants all lined up on the m25 hard shoulder being searched not everyday you see that happen
Details of the nationalities and ages of those held were not immediately available.
It is the latest incident involving suspected illegal immigrants being found in the backs of lorries. Last Friday a man was arrested after 24 Eritrean nationals were discovered in the rear of an HGV in Whitfield in Kent.
Darren Johnson AM, London Assembly Member for the Green Party, has hit out at Mayor Boris Johnson over fare increases on London's Transport System.
He was responding to accusations made by Transport for London Commissioner Peter Hendy, who claimed there could be 'social unrest' if transport links are not improved for lower income Londoners living on the outskirts of the capital.
The Mayor recently increased fares for the seventh year in a row. As Sir Peter rightly points out, millions of Londoners are really struggling with stagnant pay and spiralling housing costs. Being forced to pay high fares to use increasingly overcrowded buses and trains is making life even harder.
As more and more low-income Londoners are forced to relocate to outer London boroughs, the Mayor should be reacting by investing in the bus service and delivering safe, appealing cycle routes that people want to use for their commute to work. He should not be pushing road-building projects aimed at encouraging driving, especially when the majority of low-income families in London don’t own a car.