A sign at a county airport in Michigan left some travelers puzzled this week.

The sign was posted before the security checkpoint at Chippewa County International Airport. It says, "Please remove fudge from your bags." The sign includes an illustration of a piece of fudge.

An image of the sign was posted on Twitter by a traveler.

The airport offers convenient access to Mackinac Island, which is known for its fudge. There's approximately 12 fudge shops on the island, and there's a fudge festival held annually in August, according to WXYZ.

Airport Manager Tami Beseau told MLive that the fudge sign is Transportation Security Administration policy, not a local airport ordinance. While candy is permitted in both carry-on and checked baggage, it may need additional screening, Beseau said. The soft, dense consistency of fudge could allow someone to slip contraband inside the candy, according to Beseau.

A person who commented on the MLive story went a step further, saying the real reason the TSA screens fudge is because it has a similar shape and consistency to C-4 explosives.

Travelers should follow all TSA regulations posted at the airport they are traveling through. While a block of fudge may not require special handling at airports nationwide, those who are traveling through an area known for fudge should be prepared for extra screening.