The United Arab Emirates said it was in contact with Danish authorities to “clarify the details” of the concerns over coronavirus testing that prompted them to suspend flights.

Danish Transport Minister Benny Engelbrecht announced earlier Friday that all commercial air traffic from the UAE would be suspended for five days over concerns that its pre-flight Covid-19 tests were not rigorous enough.

“Communication is currently underway with the Danish authorities to clarify the details and cases behind the decision in order to guarantee the safety and security of all travellers,” the UAE foreign ministry said, according to Reuters.

The UAE foreign ministry insisted that all accredited testing centres were “regularly subject to strict quality checks”.