Two children were killed in a house fire in the 35000 block of North Hunt Avenue in Ingleside Thursday evening. | Photo: Tyler Tobolt / Lake and McHenry County Scanner.

Two young girls, ages 5 and 8, were found dead inside a house fire in Ingleside Thursday evening that also left four adults injured, officials said.

The Fox Lake Fire Protection District and Lake County Sheriff’s Office responded around 10:50 p.m. to the 35000 block of North Hunt Avenue in Ingleside for a structure fire.

Firefighters arrived and found the two-story residence heavily engulfed in flames, according to Fox Lake Fire Protection Fire District Deputy Chief Ed Lescher.

Three adults who escaped the home sustained injuries and a fourth adult had to be rescued by firefighters.

One of the adults was transported by a medical helicopter to Loyola University Medical Center in Maywood in critical condition with burn and smoke inhalation injuries.

The other three adults were transported by ambulance to Advocate Condell Medical Center in Libertyville.

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Firefighters found two girls, ages 5 and 8, deceased inside the house on the second floor, Lescher said.

The Office of the Illinois State Fire Marshal and their arson canine responded to the scene to assist in the investigation.

The cause of the fire is under investigation by the Fox Lake Fire Protection District, Lake County Sheriff’s Office and Illinois State Fire Marshal.