Minneapolis police advised the public to avoid the area in Uptown Minneapolis, a commercial district that includes several bars and restaurants.
Critics say Minneapolis Fire Chief John Fruetel should have called in more firefighters and mutual aid departments.
The tense environment of nationwide protests against racism and police brutality with the backdrop of the coronavirus pandemic have made Twitter, Instagram and Facebook especially dangerous for those who want to remain among the employed.
On Wednesday — the sixth day of protests over the death of George Lloyd in Minneapolis — there was little sign of violence but demonstrations continued to grow.
The charges come as intelligence officials are warning that “violent opportunists” have been emboldened nationwide by attacks on law enforcement officials amid protests.
As of Wednesday morning, arrests grew to more than 9,000 nationwide since the unrest began in response to Floyd's death May 25 in Minneapolis.
More than 5,600 people nationwide have been arrested over the past week for such offenses as stealing, blocking highways and breaking curfew, according to a count by The Associated Press.
President Trump said the U.S. military would step in to “quickly solve the problem for them.”
The scale of the coast-to-coast protests rivaled the historic demonstrations of the civil rights and Vietnam War eras.
Bystander video showed the crowd parting seconds before the semi rolled through.