LIVE UPDATES: Ferguson protests following grand jury decision on Michael Brown shooting

A grand jury declined Monday to indict Darren Wilson in the death of Michael Brown, the unarmed, black 18-year-old whose fatal shooting by a white officer sparked weeks of sometimes-violent protests and exposed deep racial tension between many African-Americans and police.

Within minutes of the announcement by St. Louis County's top prosecutor, crowds began pouring into Ferguson streets to protest the decision.

PHOTOS: Ferguson protests

Follow this post for photos, tweets and up-to-the-minute updates from ABC journalists in Ferguson, Mo. as well as reaction in major cities around the United States.