DUBAI, United Arab Emirates (AP) — The United Arab Emirates struggled Thursday to recover from the heaviest recorded rainfall ever to hit the desert nation, as its main airport worked to restore normal operations even as floodwater still covered portions of major highways and roads.

Dubai International Airport, the world’s busiest for international travel, allowed global carriers on Thursday morning to again fly into Terminal 1 at the airfield.

“Flights continue to be delayed and disrupted, so we urge you to only come to Terminal 1 if you have a confirmed booking,” the airport said on the social platform X.

The long-haul carrier Emirates, whose operations had been struggling since the storm Tuesday, had stopped travelers flying out of the UAE from checking into their flights as they tried to move out connecting passengers. Pilots and flight crews had been struggling to reach the airport given the water on roadways. But on Thursday, they lifted that order to allow customers into the airport.