Steve Griffiths

London Underground staff walked off their posts on Wednesday to protest plans to run Tube trains all night at weekends, the second shutdown of the British capital's subway in under a month.

London's Underground network will shut down this week for the second time in two months after talks again broke down in a dispute over all night services, trade unions said Monday.

London Underground staff walked off their posts on Wednesday to protest plans to run Tube trains all night at weekends, the second shutdown of the British capital's subway in under a month.

London's Underground network will shut down this week for the second time in two months after talks again broke down in a dispute over all night services, trade unions said Monday.