SAN PABLO (CBS SF/BCN) – A fire that started in the garage of a San Pablo condominium complex Monday morning spread to the unit above, thereby displacing three residents, according to fire officials.

There were no injuries in the fire, which was reported about 6:20 a.m. in the 2500 block of El Portal Drive, according to the Contra Costa County Fire Protection District.

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Investigators are trying to determine what sparked the blaze. The unit above the garage was gutted, displacing residents there, and an adjacent unit had water and smoke damage, according to a fire district spokesman. Both were deemed uninhabitable.

A fire damaged two homes at a condominium complex on El Portal Drive in San Pablo on Monday morning. (Photo courtesy Contra Costa County Fire Protection District)

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While all residents managed to escape the fire, it’s not known whether a dog was inside and crews were looking for the pet.

The fire was knocked down as of 7 a.m. and crews were working on overhauling the scene.

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Source: sanfrancisco.cbslocal.com.