In Washington, D.C., Mayor Muriel Bowser signed an emergency order on Friday to reinstate a mandatory teen curfew for the next 15 days until the D.C. Council‘s long-term measure to crack down on unruly youth takes effect in mid-July, pending congressional review.

The order implements a citywide curfew for teenagers under 18 at 11 p.m., starting Friday night. It also empowers the Metropolitan Police Department chief to designate teen curfew zones, beginning at 8 p.m., when at least nine youths gather.