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EAST SETAUKET, L.I. (PIX11) — The mother of a Long Island family was killed in a house fire early Friday, while the father and their 10-month-old son were hospitalized after escaping the blaze, police said.

According to Suffolk County Police, a 911 call just after midnight reported the large fire in the home at 360 Old Town Road in East Setauket.

Stephen Ortner, 30, who lived in the home, was able to escape through a second-floor window and onto a roof ledge, authorities said. The father was then able to hand his infant son, Leo, down to a passerby below, who then gave the child to rescue workers.

Ortner was then able to climb down to the ground on his own, police said. Both the father and baby boy were taken to an area hospital, where the dad was treated for serious injuries and the son for non-life-threatening injuries.

The boy’s mother, Lisa Ostrowski, 31, was not able to escape the home and was found dead inside once the fire was extinguished, officials said.

No other occupants were in the home at the time of the fire, and no other injuries were reported.

Police said a preliminary investigation determined the cause of the fire to be non-criminal in nature.