Latest: Ten people aboard a flight from Dubai to New York have been taken to hospital after falling ill.
New York's Mayor's office confirmed in total, 19 needed treatment - for symptoms including fever and coughing.
Three passengers and seven members of the Emirates plane's crew were then transferred to hospital.
Earlier: A plane has been quarantined at New York's Kennedy Airport after about 10 passengers became ill on board a flight from Dubai.
A passenger on the flight has been tweeting information available onboard the plane.
Larry Coben tweeted to say that passengers are being allowed disembark and are having their temperatures recorded as they deplane.
According to Mr Coben, passengers were asked to fill out a form by the Centres for Disease Control and Prevention (CDC).
Deplaning and having temperature taken pic.twitter.com/MVxWqJPLTe— Larry Coben (@LarryCoben) September 5, 2018
The airline said about 10 passengers were sick and were getting medical attention “as a precaution”
Statement: Emirates can confirm that about 10 passengers on #EK203 from Dubai to New York were taken ill. On arrival, as a precaution, they were attended to by local health authorities. All others will disembark shortly. The safety & care of our customers is our first priority.— Emirates Airline (@emirates) September 5, 2018
Earlier: A plane has been quarantined amid reports a number of passengers have become ill aboard a flight from Dubai that arrived at New York's Kennedy Airport.
The Emirates flight landed at JFK at about 9.10am (2.10pm GMT).
Video footage shot by news helicopters showed the jet sitting on the tarmac surrounded by emergency vehicles and ground control personnel.
Video from inside Emirates Flight 203, which has been quarantined at JFK Kennedy Airport amid reports of ill passengers, shows some of the 521 passengers on board https://t.co/sMU6PiAEp4 pic.twitter.com/EvxO4dgSFQ— Eyewitness News (@ABC7NY) September 5, 2018
A spokesman for New York City mayor Bill de Blasio said representatives of the US Centres for Disease Control and Prevention are on the scene.
A New York Police counter-terrorism division tweeted that it is monitoring what appeared to be a "medical situation".
PA & Greg Murphy