Swiss duty free retailer Dufry reported on Thursday a 67% plunge in underlying first-quarter turnover to 460.3 million Swiss francs ($510 million), hit by travel restrictions to counter the pandemic.

The Basel-based company also confirmed its two cash flow scenarios for 2021 - an average monthly cash flow break-even for 2021 if turnover drops 40% and a cash burn of 40 million Swiss francs if turnover falls by 55%.