NEWARK, New Jersey (WABC) -- Authorities at Newark Airport arrested a man Wednesday evening after they say he tried to bring a loaded handgun through security.This is the TSA's first gun arrest at Newark Airport this year.Port Authority police say the man from Alabama was caught with a .22 caliber handgun inside his carry-on.TSA officers made the discovery while the man was going through a security checkpoint in Terminal B.More than 4,000 guns were discovered in carry-ons nationwide last year. Almost 90% of them were loaded.Officials say passengers are permitted to travel with firearms in checked baggage if they are properly packaged and declared. TSA has a complete list of those rules and regulations on their website Last year, 11 firearms were caught at Newark airport.----------