The first fire broke out on the 2000 block of Pleasant Valley Road near Newark. The cause of that blaze is unknown.
Investigators say an electrical malfunction was the culprit in a fire on the 5800 block of Tupelo Road in the Pepper Ridge Townhouse community.
But the State Fire Marshal's office is blaming arson for a fire on the 500 block of Homestead Road in the Aldan Park neighborhood.
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