KITTANNING, Pa. (AP) — Authorities have recovered the bodies of two children near a second-floor window, suggesting they may have been trying to escape a fire that badly damaged their western Pennsylvania home.

Armstrong County Coroner Brian Myers said the blaze Thursday in a rural area near Kittanning took the lives of a 10-year-old boy and his 13-year-old sister.

He says they were found "close to the window like they were trying to get out." Their names aren't being released.

Myers says the children's mother jumped out a window with a 4-year-old. The woman, her boyfriend and the 4-year-old were taken to hospitals.

Two older sisters and a grandfather escaped unharmed.

The fire broke out about 10:30 a.m.

Kittanning is about 44 miles (71 km) northeast of Pittsburgh.