CHESTERFIELD, Mo. (AP) — The St. Louis County town of Chesterfield has joined a growing list of municipalities preventing the sale of vapor nicotine products to minors.

The St. Louis Post-Dispatch ( ) reports that the Chesterfield City Council voted 6-1 Monday in favor of an ordinance that would prohibit the sale and possession of vapor products — or e-cigarettes — to those under 18.

E-cigarettes are electronic devices with liquid nicotine that claim to lack the carcinogens found in tobacco. The products produce vapor instead of smoke.

Supporters say they are less harmful than cigarettes and can help users quit tobacco use. But opponents say they still contain nicotine and should be kept away from minors.

Ellisville and Eureka have similar ordinances.