A JetBlue flight from Newark Airport to the Dominican Republic was diverted to JFK Airport Sunday morning when some people on board became sick and reported a strange odor, the airline said.

JetBlue Flight 1203 left Newark International Airport at around 6 a.m. and was supposed to land in Santo Domingo by 10 a.m., according to the airline’s flight tracker.

The plane “diverted to New York-JFK out of an abundance of caution after the crew reported a handful of customers and crew members feeling unwell,” JetBlue spokesman Claudio Cruz said, adding that passengers were continuing to the Caribbean nation on a different aircraft.

According to NBC4, a number of people on board became dizzy and started vomiting due to a strange smell.

Cruz said the airline didn’t receive any reports of an unusual odor.

The incident comes a day after a JetBlue plane at Newark had to be evacuated after a photo of a suicide vest was seen or someone wearing one was photographed by a passenger.