Miami Beach never really wanted to host spring breakers, and shied away from advertising that would attract them, says Mayor Dan Gelber. But crowds of revelers have come anyway, and this year, the parties turned violent: two people were shot and killed near Ocean Drive this past weekend.

Now the city has imposed an emergency curfew to try to bring order back to Miami Beach and tamp down on the excessive partying, which Gelber says has become “ungovernable at times, and obviously even deadly.”