Eurostar has cancelled eight services from today until Monday in light of strike action by staff from two unions.
It said the modified timetable would ensure that all passengers are still able to travel.
Two trains are cancelled today (Friday) – the 9114, 8:04am from London to Brussels and the 9133, 12:52 Brussels to London.
Tomorrow Eurostar expects to operate a normal service but on Sunday it has cancelled four services between London and Paris and another two on Monday.
It said passengers booked to travel on one of these trains will have been contacted offering an exchange for another train on their scheduled day or to an alternative date.
A second strike has been called for the three days over the Bank Holiday weekend, beginning August 27.
The RMT has accused Eurostar of failing to honour an agreement over working hours and rotas, saying the work/life balance of staff had been ‘repeatedly undermined’.
RMT general secretary Mick Cash said earlier this week: "Our train manager members at Eurostar have a heavy commitment to shift work and unsocial hours and are sick and tired of the company’s failure to honour agreements."
