A 24-hour strike by thousands of London Underground workers will go ahead from Sunday evening after hopes of a peace deal over job losses collapsed today.

The Rail Maritime and Transport union (RMT) and the Transport Salaried Staffs Association (TSSA) said their members will walk out at 6.30pm on Sunday, threatening travel chaos for commuters and other passengers.

It will be the fourth 24-hour stoppage in recent weeks in a worsening row over 800 job losses in ticket offices.

Talks at the conciliation service Acas ended last night without a breakthrough and union leaders said today they had effectively broken down, ending any hopes of a last minute deal.

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