A woman threatened to kill everyone on a flight after she was caught smoking on board an aircraft.
In a bizarre, major meltdown caught by another passenger on their phone, she screams "I will kill everyone on this plane".
The airline confirmed she had been caught smoking on board and tampering with a smoke detector in the plane's bathroom.
It seems the woman in sunglasses was not too happy to be told to stub it out.
The incredible incident is said to have happened on an aircraft flying from Portland to Sacramento, US, a journey which takes around an hour and 23 minutes.
Local news station KOIN5 reported that she was seen with a lit cigarette on Saturday.
She was escorted to law enforcement upon landing, Southwest Airlines confirmed.
In a statement, Southwest Airlines said: "Our crew in command of Flight 2943 travelling from Portland on Saturday afternoon safely landed on-time in Sacramento following an in-flight disturbance.
"Our reports from flight attendants indicate a customer violated federal laws by both smoking on board an aircraft and by tampering with a smoke detector in an aircraft restroom.
"Our crew enforced the regulation and that was followed by the passenger outburst.
"The safety of our crew and passengers is our top priority and we take all threats seriously.
"The pilots declared an emergency to receive priority handling from air traffic controllers, and our crew handled the situation on board until the plane landed and local authorities stepped in.
"The flight carried 136 customers and a crew of five."