Firefighters respond to a fire in the basement of a home in the 34200 block of North Harrison Avenue in unincorporated Round Lake early Sunday morning. | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

Two residents were evaluated by paramedics after they escaped from a fire that started in the basement of an unincorporated Round Lake home early Sunday morning.

The Greater Round Lake Fire Protection District and Lake County Sheriff’s Office responded around 1:15 a.m. Sunday to the 34200 block of North Harrison Avenue in unincorporated Round Lake for a report of a structure fire.

Firefighters arrived on scene and found smoke coming from a two-story home, Greater Round Lake Fire Protection District Lt. Dennis Ostrander said.

A basement fire broke out at a home in the 34200 block of North Harrison Avenue in unincorporated Round Lake early Sunday morning. | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

The first arriving engine crews pulled hose lines and entered the home through a garage door on the side of the home.

Crews found heavy fire in the basement at the rear that was spreading to the rest of the home, Ostrander said.

Firefighters quickly attacked the blaze and were able to stop it from spreading to the second floor and the roof area.

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Firefighters respond to a fire in the basement of a home in the 34200 block of North Harrison Avenue in unincorporated Round Lake early Sunday morning. | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

The area did not have fire hydrants, which led to a box alarm being requested through the Mutual Aid Box Alarm System (MABAS).

Additional fire departments from Lake and McHenry counties responded with apparatus, like water tenders, to help maintain a water supply for firefighters.

The fire was brought under control in around 40 minutes, Ostrander said.

Firefighters respond to a fire in the basement of a home in the 34200 block of North Harrison Avenue in unincorporated Round Lake early Sunday morning. | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

There were two residents at the home when the fire broke out.

Paramedics evaluated the two residents, but they refused to be transported to the hospital, Ostrander said.

Firefighters remained on scene until around 4:15 a.m.

Fire investigators are looking into what exactly caused the fire.

A Nicor Gas technician works at the gas meter of a home where a basement fire broke out in the 34200 block of North Harrison Avenue in unincorporated Round Lake early Sunday morning. | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

The Grayslake, Fox Lake, Lake Villa, Newport Township, Wauconda, Libertyville, McHenry Township, Nunda Rural and Gurnee fire departments assisted at the scene.

The Antioch and Countryside fire protection districts provided coverage for the greater Round Lake area during the incident.

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“The Greater Round Lake Fire Protection District reminds residents to ensure working smoke alarms are installed on every level of the home and in every bedroom,” Ostrander added.