Protesters demonstrate in NYC rail stations, Herald Square stores, Times Square

Demonstrators protesting treatment of blacks by New York City police voiced their frustrations for a fifth consecutive day, marching Sunday from Grand Central Terminal to Pennsylvania Station -- with stops inside Herald Square's famous department stores -- and on to Times Square.

The protest began at Grand Central at about 7 p.m., with about 200 people marching in a circle around the iconic clock tower inside the station. They chanted and clapped in unison: "Shut it down, shut it down, Eric Garner, Michael Brown," and "All lives matter, black lives matter."

Police maintained a presence throughout the demonstration. There were no reports of arrests late Sunday.

Inside Grand Central, organizers handed out water and cough drops to demonstrators, many of whom have grown hoarse from chanting during the days of protests stemming from the deaths of Eric Garner, 43, on Staten Island, and Michael Brown, 18, in Ferguson, Missouri -- both of whom were black and unarmed.

Garner died July 17 after he was put in an apparent chokehold as he was being arrested by several NYPD officers. Brown was fatally shot Aug. 9 by a Ferguson police officer. The circumstances of the cases have sparked debate and protests about law enforcement's relationship with blacks and other minorities, as well as police use of force.

In each of the cases, grand juries declined to return indictments against the white police officers who were involved.

Theresa Clyburn, 55, a counselor from Brooklyn who was among the demonstrators Sunday, rejected comments from Police Commissioner William Bratton, who predicted Friday that the protests will "peter out."

"No, no. That's not happening," Clyburn said. "We're going to stay for the long run. There's a lot of young people here. It's a new generation. We're not going to let it go -- not this time."

From Grand Central, the protesters marched south along Madison and Park avenues, walking in the middle of the broad streets as drivers honked their horns.

In Herald Square, they entered Macy's, chanting "Shut it down," and then were silent for 7 minutes in memory of Garner, 43.

In a modified call-and-response, one protester spoke first and the rest of the group repeated, "This will continue as long as they continue to murder our black brothers in the street like animals."

Then, the group said in unison: "We will shut it down until justice is served. This is how the NYPD stole Christmas."

The group next entered an H&M store on 34th Street, using the escalators until protesters were on all three floors. They shouted "No justice, no Christmas!" before again observing a period of silence that lasted several minutes.

Sunday's actions appeared to be geared toward having an economic impact.

The group chanted, "We're not stealing anything. We're not breaking anything. Most importantly, we're not buying anything."

The group then went to Penn Station and, for a time, stopped on the steps of the former James A. Farley Post Office, on Eighth Avenue across from Penn Station and Madison Square Garden, where they continued to chant slogans before heading north to Times Square.

By Nicole Fuller

nicole.fuller@newsday.com@NicoleFuller

Nicole Fuller is Newsday's senior criminal justice reporter. She began working at Newsday in 2012 and previously covered local government.