A Nigerian man flew from New York to Los Angeles using an expired boarding pass that belonged to someone else, media outlets reported Thursday morning. Olajide Oluwaseun Noibi reportedly boarded Virgin America Flight 415 at New York's JFK International Airport bound for Los Angeles on Friday.

At this time, investigators are suggesting that Noibi is a tourist rather than a terrorist. Noibi apparently went through and cleared the physical screening process, but no one caught the invalid travel documents.

Document: FBI affidavit on Nigerian airline stowaway

It wasn't until after the flight took off that attendants realized an extra passenger was on board, officials said. During the flight, crew members asked Noibi for his boarding pass and, after hesitating, he handed over a boarding pass from the day before, KTLA quotes FBI officials as confirming. That boarding pass had another person's name on it.

Noibi allegedly told the crew that the pass was outdated because he had missed that flight a day earlier.

The man whose name was on the boarding pass later told FBI officials that the document had disappeared from his back pocket when he arrived at JFK International Airport on June 23.