A 14-year-old boy is dead after a shooting in downtown Minneapolis Monday night, according to police.

Officers responded to the shooting on the 90 block of Hennepin Avenue South near the Federal Reserve Bank of Minneapolis just after 9 p.m.

Police there found the boy on the ground with at least one gunshot wound. The boy was taken to the hospital, where he later died. The Hennepin County Medical Examiner's Office identified him as Thor Walsh.

Investigators believe a group of around 12 teenagers was in the area, and a fight broke out. 

At one point during the altercation, one of the teens pulled out a gun and shot Walsh, according to Minneapolis Police Chief Brian O'Hara.

"Every incident that we have is tragic. But of course, whenever there's children or young people involved, it's that much more difficult," O'Hara said.

No arrests have been made.

"The problem here is when teenagers have guns," O'Hara said in a news conference late Monday following the shooting. "Instead of settling a fight with fists, this has now turned deadly, taking away the life of a teenager and changing others forever."

He says the boy was known to police, and it was not the first time he was the victim of a shooting. 

A WCCO photojournalist at the scene captured video of several shell casings on the ground, a piece of clothing and at least two masks.

Last week in Minneapolis, four people were killed and one more was hurt in a shooting police say may have been gang-related. Police do not believe Monday night's shooting and last week's spree are connected.