Story highlights Council on American-Islamic Relations chapter calls for probe into possible anti-Muslim motive

Islamic Center of Houston catches fire after Friday prayers, when mosque was "pretty much empty"

Fire has "multiple points of origin," ATF says

(CNN) A Friday fire at a Houston mosque had "multiple points of origin" and "appears suspicious," according to a Bureau of Alcohol, Tobacco, Firearms and Explosives spokeswoman.

The Islamic Center of Houston caught fire after Friday prayers, when the place was "pretty much empty," center president M.J. Khan said.

No injuries were reported in the two-alarm fire, drawing 80 firefighters, according to officials and CNN affiliate KTRK.

The mosque was in a strip mall, and the smoke also damaged a pharmacy next door, the affiliate reported.

ATF on scene of a Mosque fire in SW Houston. @abc13houston pic.twitter.com/WqZlKWatB1 — Chris Graczyk (@13PhotogChris) December 25, 2015

Special Agent Nicole Strong of the ATF's Houston Field Division said the agency assisted in the investigation as it typically does "when houses of worship are affected."

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