U.S. Health and Human Services Secretary Alex Azar told CNBC on Friday he was “completely in support” of the Food and Drug Administration’s proposed crackdown on e-cigarettes. “We are not going to permit e-cigarettes to become a pathway to nicotine dependency” or the use of combustible tobacco, Azar said in an interview with CNBC.

He said he disagreed with a belief that banning e-cigarettes would push youth towards traditional cigarettes.