Authorities say a Florida man tried to bring a knife on a plane by hiding it in a shampoo bottle.

The discovery was made at the Charlotte-Douglas International Airport in North Carolina.

According to TSA officials, Gonzalo Gonzalez, 72, of Jupiter was stopped at a checkpoint when someone noticed something wrong with his carry-on. They later found a knife stashed inside a mini bottle of shampoo. 

Gonzalez was arrested and charged with carrying a concealed weapon.

After the incident, the TSA said that passengers are allowed to fly with weapons as long as they check them.