Passengers subdue off-duty flight attendant making threats near cockpit

A cross-country Delta flight was diverted after Stephon Jamar Duncan, 34, an inactive flight attendant, allegedly made terroristic threats and assaulted two flight attendants, according to police.
2:11 | 06/14/21

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Transcript for Passengers subdue off-duty flight attendant making threats near cockpit
We turn now to that midair scare. Incredible video here. Passengers subduing on off-duty flight attendant who allegedly threatened to take down the plane. This incident comes as air travel sitting a new high. TSA screening more than 2 million people in day for the first time since the beginning of the pandemic. Gio Benitez has here. Good morning to you. Reporter: Good morning, T.J. We're talking to someone who knows the inner workings of an aircraft. Watch as passengers and cre members on this delta flight hold down an unruly passenger after authorities say he threatened to take down the plane. Help me! He clearly had some sort of breakdown. Reporter: Police say the man is stephon Jamar Duncan, a man on leave who made terroristic threats and assaulted two on-duty flight attendants. The pilot making an urgent announcement. He very forcefully said, I need all able-bodied men to come to the front of the plane immediately for an emergency. Reporter: The plane making an emergency landing in Oklahoma City where it was swept by police and cleared. The passenger's appearance raised eyebrows before the flight. Seen wearing a helmet, elbow and knee pads and acting strange, authorities pointing to signs of mental health issues. He had plastic bags that he was putting all, like, scattering through the overhead compartments and he had all these tennis balls, and he kept saying things about tennis balls. Reporter: As air travel increases, the FAA is seeing a spike in passengers misbehaving. Since January 1st, the FAA has received around 2,900 reports of unruly passengers. They now have a zero tolerance policy with fines up to $35,000, and potential jail time. And in this latest case, the man was taken to a local hospital. The FBI is now questioning him, and delta is thanking those crew members and passengers who sprung into action, guys. Incredible. Yee owe, thank you so much.

This transcript has been automatically generated and may not be 100% accurate.

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