A judge has dismissed a lawsuit seeking to let licensed gun owners bring firearms into non-secure parts of Atlanta's Hartsfield-Jackson International Airport.

U.S. District Judge Marvin Shoob ruled the gun advocacy group GeorgiaCarry.org, did not support its argument that guns should be allowed outside security checkpoints at Hartsfield-Jackson -- the world's busiest airport, The Atlanta Journal-Constitution reported Sunday.

Georgia law allows weapons on public transit and GeorgiaCarry.org had argued that included Hartsfield-Jackson, the Journal-Constitution reported.

City officials, who argued 80 percent of the airport is considered "non-secure," said a gun-free environment assured greater safety for the airport's estimated 90 million passengers a year.

Lawyers for GeorgiaCarry.org could not be reached for comment regarding Shoob's ruling, issued Friday.