RMT members working on the Heathrow Express will walk out for 48 hours next week after overwhelmingly rejecting a pay offer, the union announced today.

Despite several efforts to resolve the dispute, members voted for industrial action and have agreed not to go in on shift between 00:01 on Monday next week until 23:59 on Tuesday.

RMT general secretary Mick Lynch said: “Our members at Heathrow Express have made their position clear with a strong mandate for action.