CASCO TOWNSHIP, Mich. (AP) -- Authorities say a 10-month-old child and a 30-year-old woman have died following a fire at a mobile home in St. Clair County.
The sheriff's department says The department says twin 4-year-olds were being treated at a Detroit-area hospital.
The department says their conditions were unknown.
The names of those involved weren't immediately released and the cause of death of the woman and infant hadn't been determined Thursday morning.
The cause of the fire also was under investigation. The home had extensive smoke damage. Casco Township is located about 35 miles northeast of Detroit.
Crews from Ira Township, Clay Township and New Baltimore fire departments were among those who responded