The flight was Delta flight 1583 from San Francisco to New York and U.S. Customs and Border Protection said it was searching for an unidentified individual.

“U.S. Customs and Border Protection (CBP) at John F. Kennedy Airport was contacted by U.S. Immigration and Customs Enforcement (ICE) yesterday, February 22, 2017, to assist in locating an individual possibly aboard Delta flight 1583 from San Francisco International Airport to JFK,” the agency said in a statement released to KPIX 5. “This individual was ordered removed by an immigration judge. To assist our law enforcement partners, two CBP officers requested identification from those on the flight in order to help identify the individual. The individual was determined not to be on the flight.”