A device deployed by police goes off in the street as police and protesters clash Wednesday, Aug. 13, 2014, in Ferguson, Mo. Authorities in the St. Louis suburb where an unarmed black teen was shot and killed by a police officer have used tear gas to try to disperse protesters after flaming projectiles were thrown from the crowd. (AP Photo/Jeff Roberson)

Photos: Protests in Ferguson

The continued clash between police and protesters leads to another violent night on the streets of a St. Louis suburb in the wake of the sho…