Around 100 people were taken ill on an Emirates flight from Dubai to New York and received medical treatment as the double-decker jet stood on the tarmac at John F. Kennedy International airport.

The incident unfolded after passengers and crew members among the 521 aboard the A380 superjumbo complained of symptoms including fever and a cough, according to the Centers for Disease Control and Prevention. Emirates itself put the number affected at just 10.

The Port Authority isolated the plane, flight EK203, after it touched down at 9:12 a.m. local time. At least 10 people were taken to hospital, Eric Phillips, press secretary to New York Mayor Bill De Blasio, said on Twitter. As of 11:30 a.m. about 250 had been let off the jet and were continuing on their journeys.

#EK203 pic.twitter.com/iXn1bbjmad

— Larry Coben (@LarryCoben) September 5, 2018

Emirates is the world’s largest airline by international traffic, and the biggest operator of the Airbus A380 jet, which seats more than 600 people in the Persian Gulf carrier’s highest-density layout.

“The plane was taken to a location away from the terminal so that medical personnel could board the aircraft to evaluate the situation and provide immediate assistance,” Port Authority Executive Director Rick Cotton said in a statement.