Demonstrators protesting the shooting death of an unarmed black man said to be "mentally perturbed" gathered in El Cajun for a second night of mostly peaceful protests, chanting slogans and holding signs.

Several hundred people took to the streets of the San Diego suburb, marching from the shooting scene to City Hall and back, shouting Alfred Okwera Olango's name, taunting police and periodically blocking traffic.

The 28-year-old refugee from the Uganda was fatally shot by police after allegedly taking a "shooting stance" while holding an object during a confrontation with officers in shopping center's parking lot, El Cajon police said. Police later confirmed Olango was holding a vape smoking device.

The crowd staged a boisterous but peaceful rally near the site of Olango's death at the Broadway Plaza Shopping Center on Broadway, chanting "No justice, no peace," and holding "Black Lives Matter" signs.

News chopper video of protesters marching the streets of El Cajon on Sept. 28, 2016, one day after the deadly police shooting of an unarmed black man, Alfred Alongo.

A tense situation unfolded earlier Wednesday evening after some sort of scuffle prompted the crowd to scatter, and forced police to call in back up.

Officers in riot gear could be seen forming lines and blocking off streets, but mostly kept their distance. Demonstrators milled about the streets, but the mood grew more relaxed and the crowds gradually diminished.

Aerial footage showed A crowd of people angry over the shooting death of an unarmed black man in El Cajon swarmed the streets near the site of the shooting.

Protests against the police shooting began earlier in the day, when crowds gathered and walked in between cars traveling in the opposite direction along Broadway.

Some protesters cursed as they marched while others screamed, "No violence! No violence!"

A dozen San Diego County Sheriff's deputies stood in a line across Broadway between Ballantyne Street and Mollison Avenue, in an apparent attempt to block protesters from getting on to State Route 67.

One woman, who was protesting with her son, told NBC 7 that she worries about him because he's black and she's white.

"It's just to bring attention to what's going on," Sara Bennett said. "I worry about him every day because of what's going on and how is it, they see me as a white woman and him as a black man. Its not fair, we need to be together."

Her son, Josiah, said he was out in the streets because he was tired of his mom worrying about him whenever he left the house.

"I shouldn't have to worry if I'm white, brown, black, purple, green," he said. "Doesn't matter. I want to feel safe and hang out and do what I want without police looking at me because I'm a certain color."

Protesters also held a candlelight memorial for Olango at the shooting scene on Broadway. They said his name multiple times and held a moment of silence before heading to the street for a sit-in.

Parkway Plaza in El Cajon, on the 400 block of Fletcher Parkway off Interstate 8, temporarily closed their doors Wednesday because of the protesters.

"By request of local authorities and out of an abundance of caution, Parkway Plaza will be temporarily closed due to demonstrations in the area. We will let you know when we are scheduled to reopen," the Plaza said in a statement on their Facebook page.

El Cajon Police said the mall chose to close on its own.

On Tuesday, officers with the El Cajon Police Department (ECPD) shot and killed Alfred Olango, a Ugandan refugee, during an encounter in the parking lot of a shopping center in the 800 block of Broadway. Police said Olango was reported to be "acting erratically" and did not follow orders to remove his hands from the pockets of his pants.

Police said at one point he pulled an object from his pants and pointed it at officers in a "shooting stance." Authorities later revealed the object was a vaping device.

The killing of Olango sparked outrage in the community amid racial tensions nationwide stemming from deadly police shootings of unarmed black men.

An NBC 7 news crew captured one confrontation between a protester and a sheriff's deputy.

As one man confronted law enforcement during a march in El Cajon Wednesday, calling them pigs, one woman stood up for authorities, telling them she understood that they were just trying to do their jobs.

“Pigs! Be scared! [You’re all] in riot gear because you’re all f---ing cowards!” the protester said.

Suddenly a woman nearby chimed in, directing her comment to the deputy, “No, you guys aren’t. You guys are doing your jobs."

"You may not be part of it, but your buddies are," another man shouted at law enforcement officers. "It's time to expose everybody."

A man wearing a shirt with the words #BlackLives tried to walk across the line formed by law enforcement but was quickly stopped by a deputy.

The man shouted that he was trying to get to his son on the other side of the line.

“Stop! Go back!” the deputy told the man.

“Are you kidding me?” the man asked the deputy. “You wonder why we gotta problem with you all? Are you serious?”

"Is not following police orders a justification for killing? This is Murder," said Christopher Rice-Wilson, the Associate Director at Alliance San Diego who was one of the protesters.

Olango emigrated to the U.S. in 1991 when he was 12 years old.

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Protesters marched the streets of El Cajon Wednesday, at one point gathering near a freeway underpass.

Mallory Webb of the NAACP’s Youth & College Division talks about her fear of walking in public and her fear of violence directed at her loved ones. The rally was held following the shooting death of Alfred Olango during a confrontation with El Cajon Police officers.

One of the speakers at a rally held the morning after a deadly shooting in El Cajon, California explained that witnesses and people who know the man killed are afraid of coming forward.