An officer involved shooting of an unarmed black teenager in Ferguson, Missouri has hundreds taking to the streets to protest and many more expressing their outrage on Twitter.

Via KMOV:

Multiple police agencies were called to Ferguson, Missouri Saturday afternoon after a fatal officer-involved shooting, sparking outrage among hundreds of residents.

News 4's Cory Stark, who is on the scene, said he saw a man lying dead on Coppercreek Road. Police confirm there was an officer-involved shooting, near the Canfield Green Apartments. A large section of West Florissant Avenue was closed by police at Canfield Drive.

According to Stark, there are at least 100 police cars and numerous officers armed with M-16's in the area. Stark also says hundreds of people have gathered at the intersection of West Florissant Avenue and Canfield Drive to protest the incident. A large police force from 15 different departments responded, including riot-control officers.

Multiple witnesses say 18-year-old Mike Brown had no weapon on him, had his hands up in the air, but was shot by authorities multiple times.

"He (the officer) shot again and once my friend felt that shot, he turned around and put his hands in the air," said Dorian Johnson, a friend Brown's. "He started to get down and the officer still approached with his weapon drawn and fired several more shots."

"He was a good kid. He didn't live around here," said Desuirea Harris, grandmother of the victim. "He came to visit me and they did that to him for no reason."

The St. Louis County NAACP has launched an investigation of the shooting saying they plan to "get to the bottom of what has occurred and will work to ensure that justice is served for all victims involved." Read on...