Acting Chief of the U.S. Park Police Gregory Monahan on Tuesday described a highly criticized June 1 incident, where federal agents used tear gas to clear a square near the White House, as "one of the most violent protests that I've been a part of in my 23 years with the U.S. Park Police."

Subscribe: http://smarturl.it/reuterssubscribe

Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled.

Get the latest news on: http://reuters.com/
Follow Reuters on Facebook: https://www.facebook.com/Reuters
Follow Reuters on Twitter: https://twitter.com/Reuters
Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en