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Passengers on an Aeromexico plane discovered a terrifying sight near the overhead bins over the weekend: a dangling snake.

The flight, which was scheduled to land in Mexico City on Sunday, made a quick landing and animal control took the stowaway reptile into custody.

The snake can be seen in video posted by Twitter user @Inda_medina:

La vibora voladora…ja ja ja. Una experiencia única en el Vuelo Torreón-México, vuelo 231 de Aeroméxico. Eso si…Prioridad en aterrizaje. pic.twitter.com/qwDk6Wtszw — Indalecio Medina (@Inda_medina) November 6, 2016

“The procedures carried out for this flight are currently being evaluated to determine how the animal entered the cabin and measures have been taken to avoid such incidents in the future,” Aeromexico said in a statement released to CNN.