Stop and smell the ... knife?

A passenger flying through Seattle-Tacoma International Airport last month was stopped when a knife was found hiding in flower stems the traveler was trying to bring in their carry-on.

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A passenger flying through Seattle-Tacoma International Airport last month was stopped when a knife was found hiding in flower stems. (TSA)

The traveler was stopped during the routine screening of carry-on luggage on July 23, the Transportation Security Administration (TSA) shared.

The passenger will reportedly face a civil penalty for having a concealed weapon.

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According to the TSA website, knives are allowed on flights in checked bags. Plastic and butter knives are the only kinds allowed in carry-on luggage.