ATLANTA (AP) — A federal judge has upheld a gun ban at the world's busiest airport in Atlanta.

A gun rights group sued the city and Hartsfield-Jackson Atlanta International Airport over the ban, claiming a new state law allowed people with concealed weapons permits to carry guns in certain areas of the airport.

But U.S. District Judge Marvin Shoob ruled Monday that allowing guns at the airport could cause "a serious threat to public safety and welfare."