A fire before dawn Monday in a vacant duplex spread to the house next door, the Fort Wayne Fire Department said in a statement.
At 6:11 a.m., firefighters were sent to 501 W. Fourth St. When they arrived, fire was showing from the rear of two structures, the statement said.
The second house, at 505 W. Fourth, sustained moderate damage and the other was heavily damaged, the fire department said.
No one was found inside either house and no injures were reported.
The cause of the fire is under investigation.
Statement as issued Monday by the Fort Wayne Fire Department:
This morning’s fire at 501 W. Fourth Street has been investigated and its cause determined to be incendiary in nature. Anyone with information about this incident is encouraged to call FWFD’s Fire Prevention Bureau at 427.1317 or Crime Stoppers at 436.7867.