SAN FRANCISCO -- San Francisco lawmakers have agreed unanimously to snuff out new smoke shops in the heart of the city's one-time hippie district.

The Board of Supervisors passed an ordinance Tuesday that places a three-year moratorium on new businesses in the Haight-Ashbury neighborhood that sell smoking equipment.

At least a dozen businesses sell rolling papers, roach clips and glass water pipes along Haight Street, a popular destination for tourists nostalgic for the Summer of Love. The ban does not affect existing shops.

Supervisor Ross Mirkarimi says that while the shops have a place in his district, they're crowding out other businesses that serve the needs of neighborhood residents.

Mirkarimi claims the Haight's head shops have led to street dealing, loitering and littering.