SALT LAKE CITY » Unrest broke out in a Salt Lake City neighborhood tonight after what appears to be a shooting involving a police officer, the Salt Lake Tribune reported.

The shooting happened about 8:15 p.m. near downtown, the paper said. Selam Mohammad told the Tribune that a police officer shot a 16-year-old boy who was his friend.

In a tweet late Saturday night, Salt Lake City police said that officers were responding to an unrelated call in area when they were told of assault in progress. The officers “tried to engage altercation,” the tweet says.

Detective Greg Wilking told the Tribune that “shots were fired,” but not how many or whether an officer fired them. Later Saturday, Salt Lake City police told the newspaper that one officer, and possibly a second one, were involved in the shooting,

Mohammad told the Tribune that the victim and a man were in a confrontation, and the victim was holding part of a broomstick at his side when officers ran up.

“They told him to put it down, once,” Mohammad said, and “started shooting him as soon as he turned around.”

The teenager was hit in the chest and stomach, Mohammad said. The victim was taken to a hospital, the Tribune reported.

City police were helped by officers from three other departments as onlookers threw rocks at officers and yelled obscenities, the Tribune said. Police have closed a light rail stop in the neighborhood.

Police detained multiple people, but Wilking could not elaborate on the reason for the detentions.

There were “a lot of hostile people upset about what had taken place,” Wilking told the Tribune.

At 8:40 p.m., a line of officers moved protesters down a sidewalk, the newspaper reported.

There are a number of homeless shelters in the neighborhood, and business owners have long complained about the homeless population and drug dealing, the newspaper said.