Toledo Fire crews said there were no injuries in a Saturday morning fire that burned three houses on the 700 block of Pinewood Avenue.
The fire started at about 4:30 a.m. in an occupied house, and spread to two neighboring homes, a fire official said. One of those homes was vacant.
City crews later bulldozed the house where the fire originated.
The cause has not been determined and may be suspicious, officials said.
The fire is under investigation.