Commuters are being advised to seek alternative routes home as Tube workers plan to walk out at 6pm at the start of a three-day strike.

Two thirds of the London Underground network will grand to a halt if planned strike action by members of the RMT, TSSA and Unite goes ahead.

Last-ditch talks to try and avert strike action failed after the unions said they did not get the unequivocal guarantees on jobs, transfers and pensions that they were seeking.

The strike, which is set to start at 6pm, will mean there will be no service on the Central, Bakerloo, Victoria, Waterloo and City, District, Circle, Hammersmith and City, Metropolitan and East London Line for the next 72 hours.

The Jubilee, Northern and Piccadilly lines, which are maintained by Tube Lines, should continue to operate, although they are likely to be very busy.

Docklands Light Railway and London Buses will continue to operate as normal.

Mike Brown, London Underground's chief operating officer, said: "If the unions press ahead with this strike action at Metronet, it will mean massive disruption for millions of Londoners, with two thirds of the Tube network affected.

"We would urge customers to consider if their journey is absolutely necessary. If it is, we would advise they seek alternative routes of travel and to leave as much time as possible for their journeys around the capital.

"We would also like to ask customers for their patience during this time, as transport staff around the capital will be making every effort to ensure they can get around."

For advice on how to make journeys using other modes of transport, including walking and cycling, passengers can log on to tfl.gov.uk/journeyplanner or call the 24-hour travel information line on 020 7222 1234.

A second three-day strike is planned for next Monday.

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