The second floor of a residence on West County Line Road near Bateman Road in Barrington Hills sustained heavy damage during a fire Saturday. | Photo: Barrington Countryside Fire Protection District

A firefighter suffered a minor injury while battling an extra-alarm fire that left a house heavily damaged and uninhabitable in Barrington Hills Saturday morning.

The Barrington Countryside Fire Protection District responded around 11:07 a.m. Saturday to the 0-100 block of West County Line Road in Barrington Hills for a report of a structure fire.

A 911 caller reported smoke was coming from the rear of a residence, fire officials said.

Firefighters arrived to find heavy smoke and flames coming from the second floor of a two-story residential structure.

Firefighters initiated a fire attack and the response was upgraded through the Mutual Aid Box Alarm System (MABAS) to a second alarm.

The homeowner reported that the home was unoccupied at the time of the fire, fire officials said.

The second floor of a residence on West County Line Road near Bateman Road in Barrington Hills sustained heavy damage during a fire Saturday. | Photo: Barrington Countryside Fire Protection District

Crews encountered heavy fire conditions and were forced to implement defensive tactics.

Fire department personnel were able to overcome the wind-driven fire and extinguish the blaze.

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Fire officials said the fire damage was contained to the second floor.

The home was deemed uninhabitable due to smoke, heat and water damage.

A firefighter suffered a minor injury and was treated and released at the scene.

Almost three dozen fire departments responded to the scene or assisted in covering calls in the Barrington area during the incident.

The cause of the fire remains under investigation, fire officials said.