TULSA, Okla. -- Tulsa police are expressing concern about a new gun that resembles a cellular telephone.

Officers are worried that the disguised weapons could be overlooked during traffic stops and airports.

"If this cell phone went through a magnometer, it could probably pass, but it couldn't perform functions of a cell phone," Sgt. Wayne Allen of the Tulsa Police Department said.

Several disguised weapons have popped up over the years, including knives that resemble pens and pagers that fire projectiles.

Police blame the Internet for the popularity of the weapons.