WASHINGTON — District officials are once again enforcing a juvenile curfew following a chaotic scene in Navy Yard Friday night, when large groups of teenagers gathered, fought, and disrupted traffic, according to city leaders.

The curfew went into effect Saturday night and will remain in place through Wednesday. City officials say it mirrors a similar policy implemented over the summer aimed at curbing youth violence.

Deputy Mayor for Public Safety Lindsey Appiah said the decision followed several weekends of disorderly behavior involving minors.

“In response to a number of weekends — basically the past four weekends — of some disorderly behavior that we’ve been seeing by juveniles,” Appiah said.

Mayor Muriel Bowser’s office said the measure is a tool that has proven effective in impro

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