Transcript for Ferguson Sees Protests After Grand Jury Decision Is Announced
And we do say good morning, America. As you know, a very tense night after the grand jury's decision not to indict police officer Darren Wilson in the shooting death of Michael brown. George is live in St. Louis, Missouri, thankfully seems quiet right now, George. Reporter: Right now it appears calm. But last night, chaos. The reaction was swift, it was violent. Shots fired. Protesters set fire to buildings, looted buildings throughout Ferguson. National Guard marched in, tear gas. And look at the police cars burning after the National Guard comes in. And it resonated all around the country. A number of protests. Passionate, but for the most they were peaceful from Washington, D.C., L.A. Protesters did shut down a highway there to here in new York out in front of our times square studio. But as we said all across the country, and the vast majority of them, listen to what Michael brown's family said and no violence. And robin, look at the front page of the St. Louis post dispatch this morning, so much anger and anguish here. The St. Louis police chief said, the fabric of our community has been torn apart. You see this map, the worst violence was concentrated in the small area of Ferguson. Alex Perez is there now. Good morning, Alex. Reporter: Good morning, George. Authorities say these were some of the worst protests they have seen since the ordeal began in August. Many people are waking up to this in Ferguson. This was a strip mall building. You can see the windows completely shattered here. Over on the end, fire fighters are battling hot spots. Building still smoldering from a fire. Overnight, the streets of Ferguson, Missouri, descending into fiery chaos. A violent clash between police and protesters in the aftermath of the heated grand jury decision. Clearing officer Darren Wilson in the shooting death of 18-year-old Michael brown. No probable cause exists to file any charge against officer Wilson. Reporter: Brown's mother emotional in the streets after learning her son's killer would be a free man. Soon after the announcement, reports of gun shots outside the Ferguson police station, followed by widespread looting, store front windows smashed. And look at the inside of this Walgreens store. Hurling tear gas and smoke bombs to try to disperse the crowds. I can't, let's go. Reporter: From the white house, president Obama calling for calm. Hurting others or destroying property is not the answer. Reporter: But his words going unheard on the streets of Ferguson. Cover your head. Reporter: Protesters chucking rocks and bottles at police cruisers. Don't throw objects at the police zbl police. Reporter: And then setting them aflame. At least a dozen buildings, raging infernos. A parking lot in nearby dellwood, torched. Fire crews rushing to snuff out the flames. It's 2:10 in Ferguson, authorities are working to get it under control. Behind me, that's a strip mall engulfed in flames. One of many set on fire by protesters overnight. Resulting in nearly 30 arrests and nearly a dozen people treated at hospitals. The National Guard marching in. I didn't see a lot of peaceful protest out there tonight. Reporter: And many of these fire fighters and response crews working through the night. Authorities say they heard at least 150 gun shots last night. But none of those gun shots came from police officers. Now, at the St. Louis airport they are expecting some delays today and cancellations because of the no fly zone that was in order here. And, of course, the big issue here today will be assessing the damage as the day moves on.
This transcript has been automatically generated and may not be 100% accurate.