File Photo – McHenry Township Fire Protection District | Photo: Alex Vucha

Two children were treated by paramedics after they escaped from a house fire in McHenry that was spotted by a person passing by, officials said.

The McHenry Township Fire Protection District responded around 5 p.m. Wednesday to the 900 block of West Broadway Street in unincorporated McHenry for a report of a structure fire.

McHenry Township Fire Protection District Battalion Chief Kevin Sears said fire crews arrived to find smoke coming from the back of the house.

A fire was discovered on the rear deck and was beginning to extend into the interior of the structure.

Crews quickly extinguished the fire with a hose line and opened up the home’s walls to ensure the damage was contained to the exterior of the house, Sears said.

Residents were home at the time of the fire and they were alerted to the blaze by a passerby, who could see the smoke from Broadway Street.

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Two children were treated by paramedics for minor smoke inhalation and released at the scene without needing transport to the hospital.

The McHenry Township Fire Protection District was assisted at the scene by the Spring Grove Fire District.

The home remained habitable and a damage estimate was not immediately available, Sears said.

The cause of the fire remains under investigation.