JERUSALEM (AP) _ Police used tear gas and water cannons Saturday to disperse ultra-Orthodox Jews who threw stones at cars to protest driving on the Jewish Sabbath, Israel radio said.

Twelve protesters were arrested, the radio said.

Jerusalem police spokesman Rafi Levy could not be reached at his home or office for comment on the report.

The radio said groups of ultra-Orthodox Jews gathered on major streets in Jerusalem, threw stones at passing cars and blocked the sreets with garbage cans.

Ultra-Orthodox Jews believe driving on the Sabbath violates the Jewish day of rest, which begins at sundown Friday and lasts until sundown Saturday.