The FBI confirmed a security threat that caused a Sun Country flight out of Minneapolis to divert to El Paso, Texas was ultimately a “hoax.”

An investigation by the FBI El Paso determined a handwritten note was found on the airplane saying, “You Are All Going to Die, Help Me.” The note prompted passengers to report it to the flight crew, who immediately reported it to law enforcement, according to the FBI.

The flight, which was headed to Mexico, was diverted to El Paso, Texas, for the safety of the passengers and the crew.

During the FBI’s investigation, it was found that the threat was a hoax by two young children on the flight.

Video taken at the scene shows the flight landing just before 4 p.m. Wednesday. Crews can be seen unloading luggage.

Sun Country says the flight landed safely, and passengers were deplaned without incident. The airline says they’re working to get the 156 passengers to their original destination in Mexico.