At least two more people have been shot as more violence has erupted in Ferguson, Missouri, where there have been several days of rioting in response to a police shooting of a black teenager.

Officials overnight said a police officer shot a man who pointed a handgun at him, and a woman apparently was shot in a drive-by shooting.

At KTVI-TV in St. Louis, some of the details were emerging.

The station reported it was about 1 a.m. when four men, masked and carrying shotguns, approached a crowd. The report said when police arrived they heard shots fired and saw people running. When one officer chased a suspect, the gunman pointed a handgun at the officer and the officer fired.

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The report said the suspect was hospitalized in critical condition.

St. Louis Today reported the latest armed confrontation was not far from the scene of protests of the earlier shooting.

A video posted on YouTube by a protester also had an officer explaining a woman was shot, too, in what reportedly was a drive-by shooting.

The video (Be aware of offensive language):

Several suspects were being sought in that shooting.

The woman was shot in the head but is expected to survive, St. Louis Today reported.

Police are on alert after a warning from the FBI.

KTVI-TV says its newsroom also received an alert from the FBI claiming a New Black Panther Party member is advocating violence against law enforcement in response to the shooting of Michael Brown.

The New Black Panther Party has issued a list of demands:

1. The officer involved in the shooting death of Michael Brown be immediately identified.

2. The same officer should be immediately fired and charged with murder.

3. The Ferguson Police Department “Protocol Handbook” be distributed throughout the Ferguson community.

4. The racial composition of the Ferguson Police Department should reflect the racial demographics of the community.

The undercurrent of dissension was clear to many.

Black residents of Ferguson told the Daily Beast they are governed by white police, and "they say it feels more like Gaza than America."

A woman identified only as Yusra told the publication: "It's like the elephant in the room. We are being occupied."

She continued: "They say it's the death of three men that started a chain reaction of death and destruction in Gaza. Will we as a people rise up like the people of Gaza? Will our community be bombed like last night with tear gas? That was a terrorist attack."

The report said 52 of the 55 officers in Ferguson's police department are white.

WND reported earlier on the Brown shooting.

The 18-year-old was shot and killed by an officer over the weekend under circumstances that still haven't been fully revealed.

Rioting erupted within a short time, and Mayor James Knowles told WND that even outsiders came into the town to join in the looting and violence.

WND reported on the chaos that erupted late Sunday as protests over the police shooting resulted in 32 arrests and two injured officers.

Brown, a recent high school graduate, was in a struggle over a police officer's gun when he was shot, according to officials. But his mother, Lesley McSpadden, rejects the official version and wants the officer who fired the lethal shots to receive the death penalty.

Knowles said hackers demanding action crashed the city's email system.

Knowles also said many of the people who smashed, looted, burned and destroyed in the aftermath of protests following a fatal police shooting of a teenager were out-of-towners.

"Once the vigil dispersed, the people who showed up saw their numbers and got really brave, then people started driving in from other areas to steal stuff," he said.

"A lot of the people aren't even from our town; but they came in and stole from our businesses and left our town in ruins, and made it look like there are racial tensions here that simply aren't what they made them out to be. Such a shame that we have people with an axe to grind, coming here to grind it," he said.

Race was immediately injected into the dispute.

Multiple Twitter posts said the looting was a negative for the community and should have been done in "white" neighborhoods.

Looters, said "Madam Nori," are "tearing up their own neighborhood instead of terrorizing the white neighborhoods."

They "need to go to the white people's area and start looting," wrote "Groovy."

Video footage showed looters carrying cases of beer and other items into the street, despite the Brown family calling for calm during their time of grief.

The violence comes on the heels of many accusations in recent months of police brutality. One woman claimed police were using mace and dogs to quiet children who were vocal participants in the protests. Others insist the police are doing their best under the circumstances.

Organizers of a website called Operation Ferguson made demands and threats directed at Ferguson authorities.

The international "hacktivist"organization "Anonymous" has demanded that Congress introduce a bill called "Mike Brown's Law" to enact strict national standards for police conduct. They further demand that the new law "grant the victims of police violence the same rights and prerogatives that are already enjoyed nationwide by the victims of other violent criminals."

Anonymous called on residents of Ferguson to “occupy every square inch” of their city and help the protesters in any way they can.

The group also issued threats.

Anonymous vowed that if protesters are harmed in any way, it will "take every web based asset” of the government offline. It further said that if the protesters were attacked, it would “release the personal information on every single member of the Ferguson Police Department” and any others involved.

Anonymous ominously closed with: “We are Anonymous - We are Legion - We will not forgive - We will not forget.”

The St. Louis Fox station reported there was an immediate spike in gun sales in the area – estimated as high as 50 percent – because of the violence.

"Store owners say it's all in response to the violence taking place in Ferguson," the report said.

The Latin Post reported the U.S. Justice Department already had announced it was looking into Brown's death.

"The shooting incident in Ferguson, Missouri this weekend deserves a fulsome review. In addition to the local investigation already underway, FBI agents from the St. Louis field office, working together with attorneys from the Justice Department's Civil Rights Division and U.S. Attorney's Office, have opened a concurrent, federal inquiry," said Attorney General Eric Holder.

Authorities in Ferguson have not released the name of the officer involved in the Brown shooting, because of death threats.