Milwaukee Mayor Tom Barrett on Monday announced a 10 p.m. curfew for teens effective immediately following the second night of unrest in the city's Sherman Park neighborhood.

Sherman Park will also be closed to the public starting at 6 p.m. until 6 a.m., a policy that will continue until further notice, due to an order from Sheriff David A. Clarke Jr., according to the Milwaukee County Sheriff's Office.

Protesters clashed with law enforcement for the second night in a row Sunday, injuring four Milwaukee police officers and four Milwaukee County deputies. Two of the deputies were hit by concrete or rocks, said Fran McLaughlin, a spokeswoman for the sheriff's office.

The Milwaukee Police Department announced 17 people were arrested, three squad cars were damaged and one store had broken windows from the Sunday night protests.

ShotSpotter, which detects gunshots and the locations of the firing, picked up 30 activations. An 18-year-old Milwaukee man was shot in the neck and seriously injured during the unrest, and no suspects have been apprehended.

The unrest broke out following the Saturday afternoon shooting death of an armed black man, Sylville Smith, by a black Milwaukee police officer.

Smith died at the scene of the shooting and no officers were injured. According to the Milwaukee police, the unnamed officer is 24 years old and has six years of service with them, including three as an officer. He will be placed on administrative duty during an investigation.

Though Wisconsin Gov. Scott Walker declared a state of emergency following Saturday night's unrest, the National Guard was not yet deployed. Local police have been working to restore order to the neighborhood.

Milwaukee has been dubbed the "worst place to live for African-Americans," something that Alderman Khalif Rainey re-emphasized over the weekend.

"What happened ... may not have been right, and I am not justifying that, but no one can deny the fact that there are problems, racial problems in Milwaukee, Wis., that need to be rectified," Rainey said. "This community of Milwaukee, Wis., has become the worst place to live for African-Americans in the entire country."