A man detained in Puerto Rico had apparently managed to board a New York-bound jet in Nigeria even though he was on an official no-fly list.
A passenger tells The Associated Press that the pilot disclosed the apparent breach as the Delta Air Lines flight stopped to refuel in Puerto Rico.
Passenger Joan Mower says the pilot said he was informed about the passenger while over the Atlantic.
Flight 215 originated in Abuja, Nigeria, where the man boarded the jet. It continued on to New York after the man was detained Thursday. U.S. Customs and Border Patrol says the unidentified man is being held for questioning. He was taken into custody without incident.
Customs officials had no immediate comment.
Delta spokeswoman Susan Chana Elliott said there was no incident on board the plane and passengers were not in any danger.