BRUIN — A kitchen fire displaced four tenants at a Main Street apartment building Monday night, fire officials said.

The fire broke out shortly after 8 p.m. in the kitchen of an upstairs apartment in the two-story cement block building.

No one was injured but the fire forced all occupants to find temporary housing.

The state police fire marshal has been called in to investigate, but the fire is considered accidental.

“It looks like a pan on an electric stove that was left on ignited the kitchen cabinet,” said Capt. Eric Feicht of the Bruin Volunteer Fire Department. “The fire gutted the kitchen and living room.”

One of three apartments was destroyed but firefighters were able to save the other two at the building at 151 Main St.

A damage estimate was not available. Tim Booher of Chicora owns the building that houses one apartment downstairs and two units upstairs.

Two tenants on the first floor and a tenant in one of two second floor apartments were home but apparently were unaware of the fire until the other upstairs tenant returned home around 8:20 p.m.

“When he got home he noticed the door was hot,” Feicht said. “He kept the door shut and that contained the fire.”

The names of the tenants were not immediately available.

Flames and smoke filled the one front upstairs apartment but firefighters from five departments converged and soon had the blaze extinguished.

The apartment where the fire started was destroyed but the other two sustained only “mild smoke damage,” Feicht said.

All four tenants stayed with relatives overnight. The tenants in the least damaged units would likely be allowed to return in a day or two.

The tenant in the burned out apartment is staying with his parents.

The Bruin VFD was assisted by firefighters from Petrolia and Chicora in Butler County, Parker in Armstrong County and Emlenton in Venango County.