Commuters are being urged to rethink their journeys home tonight after another day of chaos at London Bridge.

Network Rail suggested passengers travel either before or after the rush-hour, after a wagon from an engineering train broke down outside the station.

London Bridge station is likely to be “extremely busy” with a queuing system in place to ensure passenger safety, said the operator.

A spokesman for Network Rail and Southern said: “This has been a difficult time for passengers at London Bridge and we are sorry they are facing more disruption tonight.

“We are doing everything we can to get people home but please check before you travel.”

Today’s misery follows last Tuesday night’s problems at London Bridge which left thousands of travellers stranded during the rush-hour. The police were called as passengers crawled under, or jumped over, ticket barriers to escape the crush.

Rail unions have called the chaos “life-threatening”.

The transport hub is undergoing at £6.5billion transformation to create more platforms, a new concourse on what is the fourth busiest station in the country, bringing in 50million passengers a year.

A Department for Transport spokesman said: “It is extremely frustrating that thousands of commuters on this important route again face unscheduled disruption. It is vital that Network Rail and the operators keep passengers informed and we are urgently speaking to them to ensure this happens.”

Tickets are being accepted by other operators on relevant routes. Southeastern services are not affected. Passengers are being advised to check with their operator or