ST CLAIR TOWNSHIP, Mich. (AP) - Authorities in southeastern Michigan say an 18-year-old woman and her 27-year-old brother were killed when the woman ignited a two-story bonfire built for the woman's high school graduation party.
St. Clair County Sheriff Tim Donnellon said the autopsies on Savannah and Christopher Blewett were conducted Monday morning but he didn't yet have the results. He says preliminary information indicates they died from the trauma, not burns.
The sheriff's department says the gasoline-drenched bonfire exploded about 9:30 p.m. Saturday at the brother's home in St. Clair Township, about 50 miles northeast of Detroit.
Witnesses told deputies the man drenched the bonfire in gasoline, then invited his sister to set it afire.
Authorities say three other people hurt in the explosion were taken to hospitals for treatment. There's no immediate word on their condition. The Detroit News says another person was treated at the scene.
Donnellon says "it was meant to be a celebration that went terribly wrong."
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