LONDON (AP) -- London's mayor has ruled out offering more money to resolve a London Underground labor dispute set to shut down services for the second time this summer.
Boris Johnson has criticized the unions, arguing that the management offer to compensate for the new "night Tube" services was generous. Workers are staging a 24-hour strike starting Wednesday evening to protest the new overnight service on weekends, arguing that the management needs to hire more people to deal with the extra shifts. They argue that work life-balance will be hurt.
Transport officials say they've offered a salary increase and bonuses to compensate for the changes.
Johnson says that he's "not going to authorize any more money" to avert further trouble. He's also refusing to meet union leaders to try to break the deadlock.