Several outlets report that an American Airlines passenger behaved violently aboard a flight approaching Philadelphia on Sunday. CBS News and Fox News say the flight crew reported that a passenger bit another traveler during the flight, prompting unrest among passengers and disruptive behavior that included aggressive actions. Fox News quotes the pilot’s account describing the passenger as “trying to fight everybody,” while CBS News reports similar pilot communication.

All sources that provide detail describe coordination for emergency response. CBS News and Fox News state that the crew requested EMTs and law enforcement upon landing in Philadelphia. The airline also said the incident involves a medical emergency, according to CBS News.

Simple Flying similarly reports that the passenger becomes “involuntarily unruly” after a medical emergency inflight and that a bite occurred before landing. Other coverage frames the event as mid-air chaos related to an alleged biting incident, but most factual details center on the crew’s reports, the bite itself, and the arrival of emergency personnel in Philadelphia.