Gunfire erupts amid continued protests in Milwaukee

Tensions flared again on Sunday night, with a local man shot and fourpolice officers injured in the Milwaukee area, where the fatal shooting of a suspect by an officer had sparked rioting, prompting Wisconsin's governor to activate the National Guard.

After small groups of demonstrators gathered earlier in peaceful vigils, Milwaukee police said late Sunday night they began attempting to disperse crowds after shots were fired and objects were thrown by some protesters.

• Man shot by police in MilwaukeeID'dasSyvilleK. Smith
• Fatal police shooting leads to fiery protests in Milwaukee

Police said they rescued an 18-year-old Milwaukee man who was shot and seriously injured during the unrest. Officers used an armoured vehicle to retrieve him and take him to hospital. Police haven't said who shot the man, but said that they continue to look for suspects.

Four deputies were hurt during the night during which about 20 police in riot gear faced a group of more than 100 protesters according to the Milwaukee County Sheriff's Office.

Sheriff's spokeswoman Fran McLaughlin said Monday the officers were hit by concrete or rocks and that two of them haven't returned to duty.

• Minnesota policeshooting raisesquestions about race, accountability
• #SayHisName: Americans react to videos of police killings

Police violence against black peoplehas set off intermittent, sometimes violent protests in the past two years, igniting a national debate over race and policing in the United States and giving rise to the Black Lives Matter movement.

Wisconsin Gov.Scott Walker took the precautionary step in case more violence broke out over the death of Sylville K. Smith, 23, who was shot while trying to flee from an officer who had stopped his car on Saturday.

Aiming to reassure the community that the police acted properly, Chief Edward Flynn said on Sunday he had viewed video from the officer's body camera and it showed Smith had turned toward him with a gun in his hand after a traffic stop.

The Sherman Park neighbourhood, where a heated confrontation between residents and officers clad in riot gear turned violent overnight, was peaceful as the sun set.

About 200 people lit candles and gathered around the spot where Smith was shot. A few police officers looked on as faith and community leaders implored protesters to restrain their anger.

'We are not ignorant and stupid people'

"We are not ignorant and stupid people," a pastor told the crowd, echoing a feeling among many of the city's black residents that they are systematically mistreated.

"Every single person needs to be looked upon as human beings and not like savages and animals."

The previous night, gunshots were fired, six businesses were destroyed by fire and police cars damaged before calm was restored in the area, which has a reputation for poverty and crime.

Seventeen people were arrested, and four police officers were treated for injuries.

Police chief defends officer

At a news conference with Mayor Tom Barrett, Flynn said the officer who fired the fatal shot was black and media reports also identified Smith as black.

He said a silent video of the incident appeared to show the officer acting within lawful bounds in shooting Smith.

He said the officer stopped Smith's vehicle because he was behaving suspiciously and then had to chase him several dozen feet on foot into an enclosed space between two houses.

He said the moment when the officer fired his weapon could not be determined because the audio was delayed.

"I'm looking at a silent movie that doesn't necessarily tell me everything that will come out in a thorough investigation," Flynn said. "You know the fog of war. You know first reports are frequently wrong or slightly off.

"I know what I saw. Based on what I saw, didn't hear, don't know what the autopsy results are going to be, he certainly appeared to be within lawful bounds," Flynn said of the officer.

The mayor told the news conference that Smith did not drop the gun as ordered before he was shot. Smith had a lengthy arrest record, Barrett said, and officials said earlier he was carrying a stolen handgun loaded with 23 rounds of ammunition when stopped for unspecified "suspicious activity."

On Sunday evening, several of Smith's sisters addressed the crowd, saying their brother, father to a two-year-old,"did not deserve" to be shot.

"My brother was no felon," said one of them, Kimberly Neal, 24, as she wept. "My brother was running for his life. He was shot in his back."

National Guard activated

Walker announced the National Guard activation after a request from Milwaukee County Sheriff David Clarke, who met Walker and Wisconsin National Guard Adjutant General Donald Dunbar.

But Barrett said any decision to deploy the troops would come from the police chief.

The National Guard, which is under the dual control of the federal and state governments, was deployed in Ferguson, Mo., in August 2014 after several nights of rioting over the police killing ofunarmed black teenager Michael Brown.

• Ferguson police agree to body cameras
• Michael Brown's family file wrongful death lawsuit

This summer has brought deadly violence by and against police in the U.S.

The police shootings of Alton Sterling in Baton Rouge, La., Philandro Castile in St. Paul, Minn. in July,both filmed and posted to social media, sparked nationwide protests.

Also last month, five officers were slain by a sniper in Dallas last month as they provided security at an otherwise peaceful protest of police killings. Three officers were killed by a gunman in Baton Rouge less than two weeks later.

Policing in Milwaukee has come under scrutiny since 2014 when Dontre Hamilton, a mentally ill, unarmed black man, was fatally shot in a park by a white officer, an incident that sparked largely peaceful protests.