Thousands of London Underground drivers are to be balloted for industrial action in a row over Boxing Day pay, threatening disruption to festive Tube services, it was announced today.
Around 2,200 members of the drivers' union Aslef will vote in the next few weeks on whether to strike on the day after Christmas.
It is understood the union is seeking quadruple pay for its members who work on Boxing Day.
A spokesman said: "The union's executive was told that negotiations with the company had failed to reach an agreement on the terms of Boxing Day working and it has now informed the company that it intends to ballot its members employed by LU for strike action.
"The union is seeking adequate compensation for members working on such an unsociable day."
The ballot result will be announced on December 14, and the union will have to give seven days' notice of any industrial action.