<p>The passengers who prompted a terrorism scare on a Detroit-bound flight on Sunday, the tenth anniversary of 9/11, were not joining the Mile High Club in the airplane bathroom as initial reports suggested, the FBI said in a statement Monday.</p>
The Transportation Security Administration said in a statement that the report Sunday afternoon prompted NORAD officials to send F-16 jets to shadow the flight until it landed safely in Detroit -- a step the agency said was taken "out of an abundance of caution."
According to officials, police met a plane that landed Sunday at Detroit Metro Airport. Officials said the pilot of Frontier Airlines flight 623 from Denver to Detroit alerted the airport tower of an emergency on board.