State fire officials are investigating the circumstances surrounding a fire at a vacant home on Pike Street.

Just before 3:30 p.m. Saturday, multiple 911 calls were made reporting a structure fire at 33 Pike Street. Pike Street connects Western Avenue with Green Street just east of the Augusta State Airport.

One caller, according to a news release issued Tuesday by the Maine Department of Public Safety, reported seeing three men running from the property, and gave information about their locations, allowing Augusta Police officers to locate them.

State police troop commander Lt. Aaron Turcotte said in the news release that Augusta Fire Department crews found heavy fire inside the single-family home, which had been vacant for some time. With the help of firefighters from the Vassalboro, Litchfield and Winthrop fire departments, Augusta firefighters were able to knock down the fire.

The home sustained significant damage, Turcotte said.

Investigators, working with Augusta police, identified two people who had been squatting inside the home.

The fire was determined to have originated from a 20-pound propane tank attached to a portable “buddy heater.” Turcotte said a rubber supply hose came into contact with a lit candle, which started the fire.

All the people who were at the home at the time of the fire have been identified and interviewed. No charges have been filed.

Augusta property records show the single-story ranch-style home belongs to James Young, care of Select Portfolio Servicing in West Valley City, Utah. The home, which sits on a little more than a quarter acre, is assessed for property tax purposes at $95,200.

Turcotte said investigators with the fire marshal’s office will continue to investigate.