Firefighters battle a blaze that broke out late Friday in downtown Calumet. The cause of the fire was still undetermined Sunday. At least three firefighters were taken to Aspirus Keweenaw Hospital for treatment of minor injuries and smoke inhalation. (Garrett Neese/Daily Mining Gazette)

CALUMET — Fire swept through half a block in downtown Calumet late Friday night, drawing virtually every agency from surrounding areas to fight it well into early Saturday.

By Saturday morning, the buildings from 108 to 120 Fifth Street in Calumet were declared a total loss. Three Calumet firefighters had been treated and released at Aspirus Keweenaw Hospital for minor injuries and smoke inhalation, Houghton County Sheriff’s Deputy Tyler Harju said.

The fire was reported to 911 at 10:49 p.m., the Houghton County Sheriff’s Office said Saturday. Calumet Fire Department and Laurium Police Department were first on site, and evacuated residents from 104 to 120 Fifth Street. Twelve local fire departments responded.

By 1:30 a.m. Saturday, the fire had been controlled to that stretch of buildings, Harju said.

The Red Cross used the Calumet Colosseum as a staging area, Harju said.

An estimated 20 to 30 people were displaced in the fire. Pigs N’ Heat was assisting in the aid for displaced people, including putting them up at the AmericInn, Harju said. The Salvation Army also lodged victims and provided assistance on scene, including food to firefighters with donations from EconoFoods, BP of Calumet and McDonald’s.

Assisting the Houghton County Sheriff’s Office and local fire departments were Michigan State Police Calumet Post, Keweenaw County Sheriff’s Office, Laurium Village Police Department, Mercy EMS, B&B Contracting, UPPCO and Semco.

As of Sunday, the cause was still unknown, the Houghton County Sheriff’s Office said. The Michigan State Police Fire Marshal had been contacted. The area was being treated as a crime scene to preserve evidence until proven otherwise, the sheriff’s office stated in a news release.

Firefighters had to contend with high winds, which may have contributed to the spread of the fire to multiple buildings.

The fire drew hundreds of onlookers around the perimeter set up by fire and police. After the front wall of one building collapsed, firefighters directed the public back another block to Sixth Street.

Anyone with information on the cause of the fire is asked to contact the Houghton County Sheriff’s Office at 906-482-0055.

All proceeds from the opening of the roller rink at the Gipp Arena in Laurium on Saturday were pledged to those affected by the fire.

The AmericInn in Calumet also is collecting for victims of the fire, it announced on its Facebook page. A list of needed clothes and sizes can be found at https://www.facebook.com/AmericInn-Calumet-131835913340.