A Costco was cleared out this Black Friday, and we are not referring to merchandise.
Authorities say 12 people needed treatment after a Freon leak in the refrigerated section of a store in Glendale.
The leak forced the evacuation. Three people were taken to a hospital for respiratory problems and the rest were treated at the scene.
Fire officials say the leak was caused by a serviceman working on a refrigerator unit.
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7831 N. Business Park Drive