Two people have been killed and one injured during a third night of unrest in the US city of Kenosha, sparked by the police shooting of a black man.
Police said three people had been shot, but gave no details about who was involved.
Local media reports earlier said the violence was believed to have stemmed from a conflict between protesters and armed men guarding a petrol station.
Unrest broke out after Jacob Blake was shot and injured by police on Sunday.
Video footage showed the 29-year-old being shot a number of times as he leaned into a car. His lawyers said it would take "a miracle" for him to walk again.
People have since defied emergency curfews in the city to join protests, which at times have turned violent.
In their statement, Kenosha Police said officials responded to "reports of shots being fired and multiple gunshot victims" in the city at about 23:45 on Tuesday (04:45 Wednesday GMT).
"The shooting resulted in two fatalities and a third gunshot victim was transported to a hospital with serious, but non-life threatening injuries," the statement said.
It added that the identities of the victims were still being determined and that no further details would be given at this time. An investigation has been opened.
Kenosha County Sheriff David Beth earlier told the New York Times that an investigation into the shootings would be focused on a group of men armed with guns outside a petrol station.
Footage shared online showed a man with a rifle being chased by a crowd before he fell to the ground and appeared to fire multiple rounds at them. Other video shows armed civilians, many dressed in military fatigues, congregating outside businesses they said they were protecting.
Footage also shows people running through the streets as gunshots ring out, and wounded men on the ground.
Wisconsin Governor Tony Evers said on Tuesday he was sending more National Guard troops to the city amid the unrest.
How have the protests unfolded?
Within hours of Mr Blake's shooting on Sunday, hundreds of people had marched on Kenosha's police headquarters. Cars were later set alight, and police urged 24-hour businesses to consider closing because of "numerous" calls about armed robberies and shots being fired. A night-time curfew was imposed.
On Monday, Governor Evers called up the National Guard to help local police. The forces used tear gas, rubber bullets and smoke bombs, protesters said. Some demonstrators were seen attacking cars and property with baseball bats, Reuters reported.
On Tuesday, hundreds of protesters marched through the city. A small group threw fireworks and water bottles at police, who responded with rubber bullets and tear gas.
In a message posted on Twitter, police urged people in Kenosha, a city of about 100,000 on the south-western shore of Lake Michigan, to "stay off the streets".
Buildings and cars have been burned.
A state of emergency has also been declared in Wisconsin.
Protests have also spread to a number of other cities, including Portland, Oregon and in Minneapolis, Minnesota, where the police killing of unarmed black man George Floyd in May sparked Black Lives Matter protests across the US and globally.
What's the latest with Jacob Blake?
Lawyer Ben Crump told a press conference on Tuesday that doctors said Mr Blake had been paralysed by the shooting.
"His family believe in miracles, but the medical diagnosis right now is that he is paralysed and, because those bullets severed his spinal cord and shattered some of his vertebrae, it is going to take a miracle for Jacob Blake Jr to ever walk again," he said.
The 29-year-old, shot as his young sons sat in the car, was also left with holes in his stomach, an arm injury and damage to his kidney and liver. Most of his colon and small intestine had to be removed, his lawyers told reporters.
His mother Julia Jackson told the press conference her son had been "fighting for his life", but said if he "knew what was going on as far as that goes, the violence and the destruction, he would be very unpleased".
Mr Blake's shooting comes as the US grapples with the treatment of African-Americans at the hands of law enforcement, as well as wider questions about racism in society, since the death of George Floyd.
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