Bucyrus (byoo-CY'-russ) Fire Chief Jay Keller says a teenage boy also was injured in the Thursday night fire, which appears to have started in the living room. The cause is being investigated.
Keller says the identities and ages of the children haven't been released but that it appears all lived at the home.
A spokesman for the Ohio fire marshal says in a statement that fire damage to the home was moderate. Investigators don't know yet if it had smoke detectors.
Bucyrus is about 65 miles north of Columbus.
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