Watch CBS News

Mayor Bill De Blasio Urges Protesters To Call Out Agitators, Says Officers Using 'Kettling' Tactic Is Not Acceptable

NEW YORK (CBSNewYork) -- Mayor Bill de Blasio is urging protesters to call out and avoid agitators after violence has broken out at several demonstrations this week.

Nineteen people were arrested during protests Thursday night.

Hundreds of people marched in Manhattan, many for different reasons, and while most were peaceful, there were some who clashed with police.

One officer was pushed to the ground with a chain pressed to his neck.

MORE -- NYPD: More Than A Dozen Arrested When Post-Election Protests Turn Violent For 2nd Night In A Row

election protesters and police thurs night
It was another night of post-election protests in New York City, as hundreds of people marched in Manhattan. (CBS2)

"If you see folks among you doing violence or planning violence that have got chains or hammers or anything in their bag, you need to separate from them and you need to point out what they're doing because that's not what most protesters are about," de Blasio said Friday.

When asked about aggressive policing tactics, the mayor said video clips do not necessarily tell the whole story.

MORE -- NYPD Says Outside Agitators Again Infiltrate Peaceful Protests, More Arrests Made Thursday Night In Manhattan

He said the tactic known as "kettling," where protesters are surrounded and prevented from dispersing, is not acceptable.

The mayor says the NYPD's goal should always be to de-escalate and use as little police presence as possible.

MORE FROM CBS NEW YORK

You can get the latest news, sports and weather on our brand new CBS New York app. Download here.

View CBS News In
CBS News App Open
Chrome Safari Continue
Be the first to know
Get browser notifications for breaking news, live events, and exclusive reporting.