A grassroots campaign, "No Justice, No Profit," organized with celebrities and Hollywood stars called for a nationwide boycott of retail stores on Black Friday, under the Twitter hashtag #BlackOutBlackFriday and #BoycottBlackFriday.

The protest was a continuation of protests against the grand jury's decision not to indict the police officer who shot and killed teenager Michael Brown in Ferguson, Missouri, on Aug. 9.

The campaign saw demonstrators rallying at major retailers around the St. Louis area where many are still raw about the grand jury decision and the violent protests that broke out afterwards.

In Manchester, a suburb of St. Louis, two dozen people chanted, "No justice, no peace, no racist police" after police moved them out a Wal-Mart, according to the Associated Press. At the Walmart in Ferguson, military Humvees, police cars and security guards were on patrol as they had done all week.

In Chicago about 200 people gathered near the city's Magnificent Mile shopping district, and staged a die-in. "We want them to think twice before spending that dollar today," Kristiana Colon told The Associated Press. "As long as black lives are put second to materialism, there will be no peace."

In New York, there was about 300 demonstrators rallied outside Macy's on Herald Square, a shopping hub in the city, then marched to Times Square. A separate group marched at Wall Street.

The campaign, spearheaded by the Justice for Michael Brown Leadership Coalition, saw the lack of indictment as a symptom of a larger issue in the U.S. surrounding race and the criminal justice system, and how unfairly it discriminates against certain races.

The campaign gained traction on social media Tuesday night and Wednesday morning and attracted support from celebrities like Russell Simmons, Michael B. Jordan, and Hollywood stars like Tyrese and Isaiah Washington.

Supporters believe if the economy is unsettled, elected and law enforcement officials will pay attention to their case. Black Friday is the biggest shopping day in the retail calendar. Last year, some 247 million shoppers spent $59.1 billion over the weekend, according to the Associated Press.

Promoting the boycott during a news conference in the wake of the grand jury decision, Missouri pastor Rev. Spencer Lamar Booker said Brown's death was "groundless" and "senseless."

"No matter how convoluting his others' attempts to make a legal argument, an illegal act was committed called murder," he told reporters, as quoted by the UK-based Independent.