TOLEDO, Ohio (AP) - A northwest Ohio school is offering counseling for children and staff after three students were found dead at home, along with their uncle and grandmother, in a possible murder-suicide amid a custody dispute.

Toledo police say the five bodies were found Monday in a car in the family's garage. A truck was running with hoses leading from the exhaust into the car, and investigators say the relatives may have died of carbon monoxide poisoning.

The Sylvania schools superintendent tells The Blade newspaper the three children - ages 5, 6 and 10 - attended Whiteford Elementary School, which offered the family condolences.

Police say the children's grandmother had primarily cared for them for several years and she was upset that the youngsters' parents were trying to regain full custody.

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