MILWAUKEE (CBS 58) -- A handgun was detected during a routine screening of carry-on luggage at Milwaukee Mitchell International Airport on Sunday, May 21 at around 5 a.m., according to Transportation Security Administration officials.

The firearm was reportedly spotted by a TSA officer on the X-ray screen during baggage checks. The Milwaukee County Sheriff's Office was alerted, and a deputy seized the firearm at the checkpoint.

Wisconsin TSA Federal Security Director Mark Lendvay addressed the incident in a press release issued on Tuesday, May 23, noting that passengers should thoroughly inspect personal belongings to ensure no prohibited items are carried into the airport.

So far in 2023, officials say ten firearms have been intercepted at MKE's security checkpoints, with 21 detected the previous year.

The TSA has increased penalties for bringing weapons to the airport, with fines potentially reaching up to $14,950. Penalties are determined on a case-by-case basis, and TSA PreCheck eligibility can be revoked for at least five years for passengers caught with firearms.

TSA rules for traveling with firearms can be found by clicking here. That said, travelers are encouraged to also contact their airline for any additional requirements concerning firearms and ammunition.