6. Medium of protester on ground, under arrest, police officer says UPSOUND (English) "Get out of here. Go. Go." Various people: "Contact information... What's your name?"
7. Medium of police officer with a man, UPSOUND (English) "Get off him, he's a journalist, you are arresting a journalist." Man walks away from officer.
More than a dozen people protesting at a grand jury's decision not to indict the police officer who fatally shot 18-year-old Michael Brown have been arrested outside of the Ferguson police department.
Tensions escalated late Friday during an initially calm demonstration after police said protesters were illegally blocking West Florissant Avenue.
A Missouri Department of Public Safety spokesman said 15 people were arrested.
The demonstration in Ferguson came after protesters earlier in the day temporarily shut down three large shopping malls in the suburban St. Louis area.
