Ten people have been taken to the hospital, eight were being treated on site and still others were being evaluated after the pilot of an Emirates Airline jet declared a medical emergency before landing at JFK International Airport Wednesday morning.

Emirates Flight 203, an Airbus A380 with 521 passengers on board, arrived at JFK from Dubai at 9:10 a.m.

The pilot reported two male passengers on board with extremely high fevers and approximately 100 passengers “coughing non-stop.”

Video from news helicopters showed the jet sitting on the tarmac surrounded by ambulances, emergency vehicles and airport personnel. After several minutes, passengers began to emerge. Those who were cleared were put on buses to get to the terminal.

Eric Phillips, a spokesman for Mayor Bill de Blasio, says representatives of the U.S. Centers for Disease Control and Prevention were on the scene.

Phillips tweeted that the flight stopped in Mecca, which is experiencing a flu outbreak, and “early indications point to that as a possibility.”

Airline representatives did not immediate respond to an email.

A New York police counterterrorism division tweeted it appeared to be a “medical situation.”

Passenger Erin Sykes posted video of officials wearing masks and gloves taking the temperature of passengers on the tarmac.

In an interview, Sykes said she saw a few passengers being taken off the plane first for medical attention, but she added that “many, many” others were showing signs of illness.

“Very intense coughing. Violently sick. Going into the bathroom a lot,” she said when asked to describe the scene.

By afternoon, there were still conflicting reports about how many people were sick and unanswered questions about the cause. The airline said about 10 passengers needed medical attention “as a precaution,” while the CDC said about 100 of the 520 people aboard the plane were being evaluated after complaining of illness, including cough and fever.

A traveler in the business section of the aircraft, Raghida Dergham, said in an interview that sick passengers were in a “lower level” economy section of the plane.

“I feel great. I feel fine,” she said. “Nobody was alarmed. … It was handled very well.”

But other passengers said they suspected that some passengers were sick before they got on the plane and that the airline should have done more to protect others.

“Why did they allow them on the flight? … I sat with them for 13 hours. If it’s a virus, we’re all getting sick,” Srinivasa Rao said.

Sykes partly faulted the ill passengers themselves.

“These people should know not to travel in a confined space with other healthy people,” she said.

BREAKING: Emirates flight 203 from Dubai landed at JFK in NY with 100 sick people and has been quarantined. Passengers are ill with high fevers, and coughing.

— Breaking911 (@Breaking911) September 5, 2018

Monitoring what appears to be a medical situation at JFK airport. We are working with the Port Authority and our Federal partners. pic.twitter.com/HisKnrqXst

— NYPDCounterterrorism (@NYPDCT) September 5, 2018

A dozen protesters police cars meeting my retienen flight to JFK. What’s up @emirates ? pic.twitter.com/qjpbQbfF4K

— Larry Coben (@LarryCoben) September 5, 2018

Cabin crew deplaning. pic.twitter.com/rZWYSk448Y

— Larry Coben (@LarryCoben) September 5, 2018

All passengers being asked to fill out the Center for disease control and prevention form pic.twitter.com/6SidlKx090

— Larry Coben (@LarryCoben) September 5, 2018

(AP)