A passenger forces Delta flight to make an emergency landing in Oklahoma City

Authorities said an off-duty flight attendant dressed in protective gear began demonstrating signs of mental health issues and threatened to take down the plane as flight attendants and passengers jumped to action.
2:16 | 06/13/21

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Transcript for A passenger forces Delta flight to make an emergency landing in Oklahoma City
with the latest scare in the air. This caught on camera. A delta flight from Los Angeles to Atlanta diverted after an off-duty employee threatened to take down the plane. Kenneth Moton is in Reagan national airport with the story. Kenneth, good morning. Reporter: Good morning, whit. Federal authorities are investigating this incident on that delta flight. We've seen unruly air travelers before, but there's more concern this morning over the fact that this allegedly involved a person who is trained to know the ins and outs of the cabin of an aircraft. This morning, that moment of terror in the skies. Delta crew members and passengers tackling an off-duty delta flight attendant. Authorities say the unruly passenger, was showing signs of mental health issues and threatening to take down the L.A. To Atlanta flight. I was just, like, yeah. This guy is trying to open the door. He's going to take us out. Reporter: Two flight attendants were assaulted in the melee. The pilot making an urgent announcement. He very forcefully said, I need all able-bodied men to cme to the front of the plane immediately for an emergency. Wen the call came, no hesitation. We all just kind of swooped on him, and then we kind of got him down, and we're holding him down and he was screaming and crying. Reporter: Passengers say the man's appearance when boarding the plane raised eyes, questioning why he was allowed to board the flight wearing a s.w.a.t.-like helmet, knee and elbow pads. Why would you come prepared with basically what is armor to do something on a flight? Reporter: The plane made an emergency landing in Oklahoma City where it was swept and cleared. Now it appears that as air travel increases, so does the number of unruly passengers. While it's unclear what triggered this latest incident, the FAA says, out of a record 2,900 reports since January 1st, 2,200 included passengers violating the mask mandate. Delta says that off-duty flight attendant used the intercom, but did not try to get into the cockpit or open the plane's door. The man is facing several charges this morning, and he was transported to the hospital in Oklahoma City, and was questioned by the FBI. Janai? Kenneth, thank you so much.

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

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