SAN FRANCISCO (KCBS/KPIX5) — A hazardous materials incident at a hotel in San Francisco’s famed Fisherman’s Wharf district sickened 15 people and prompted a brief evacuation Monday evening, fire officials said.

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The San Francisco Fire Dept. was informed about 5:30 p.m. that over a dozen people at the Raddison Hotel at 250 Beach Street were overcome by smell after being exposed to an unknown substance.

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Of the 15 victims who became ill, three were transported by ambulances to hospitals for evaluations.

There was no immediate confirmation on what the substance was, but the evacuation was lifted within about an hour.

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