Britain’s biggest repatriation effort since World War II ramped up on Tuesday as questions swirled over the pay Thomas Cook executives received in the run-up to the tour operator’s collapse, which left thousands stranded globally.

As uncertain Thomas Cook holidaymakers made their way to airports around the world, Britain’s Civil Aviation Authority said Tuesday it brought back 14,700 Thomas Cook customers back to the U.K. on 64 flights on Monday. That amounts to around 95% of the holidaymakers who were originally booked to fly home that day.

A further 135,000 passengers are expected to be brought back on rescue flights over the next 13 days, including 16,800 on 74 flights on Tuesday. Everyone will be brought back regardless of nationality or whether they are protected by the government-backed travel insurance program.

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