TOPSHOT - People wear face masks to protect against the coronavirus as they keep their distance in a queue at a supermarket…
People wear face masks to protect against the coronavirus as they keep their distance in a queue at a supermarket during a mandatory confinement, in San Juan, Puerto Rico on April 7, 2020.

SAN JUAN, PUERTO RICO - Puerto Rico's governor on Wednesday asked federal officials to ban all flights from U.S. cities with a high number of coronavirus cases to help prevent the spread of COVID-19 in the U.S. territory.


The petition by Gov. Wanda Vázquez to the Federal Aviation Administration came after officials accused some visitors of taking medicine to lower their fevers to avoid being placed in quarantine by National Guard troops screening people at the island's main international airport.  


At least two passengers from New York who lowered their fever with medication are now hospitalized in the island with COVID-19, said National Guard spokesman Lt. Col. Paul Dahlen.

"They themselves admitted it," he said, adding that the two people called health authorities when their condition worsened and that one of them was placed on a ventilator.


Vázquez asked to ban flights from New York, Florida, New Jersey, Pennsylvania, Connecticut and Illinois.
Joel Pizá, interim executive director of Puerto Rico's Ports Authority, said in a statement that those flights would be rescheduled when there's a drop in cases in those states.


It's unclear how many flights would be affected if the FAA agrees to the temporary ban. A Ports Authority spokesman did not immediately return a message for comment.


The FAA previously authorized a petition from the U.S. territory to allow the National Guard to screen passengers at Puerto Rico's main international airport and agreed to reroute all commercial flights to that airport.


The National Guard has screened more than 52,000 people with the help of high-speed infrared cameras that set off an alarm if they detect a high temperature. More than 160 passengers were ordered to remain isolated for two weeks, although the government has no way of ensuring that they follow those instructions.


Puerto Ricans have been increasingly complaining about a high number of COVID-19 cases among tourists arriving from the U.S. who don't adhere to the required two-week quarantine. One man was heavily criticized on Twitter after he posted that he was at the supermarket just days after arriving in Puerto Rico from New York.


Puerto Rico has reported at least 24 deaths and more than 600 confirmed cases, with only 6,000 people tested in a U.S. territory of 3.2 million. The territory's government imposed a curfew on March 15 that has shuttered all non-essential businesses and ordered people to stay in their home unless they have to buy food, medication or go to the bank. Hundreds have been cited for violating the curfew.