Fifteen employees at a Southern California aerospace facility have been hospitalized after they were exposed to an unknown chemical.
Los Angeles County firefighters were dispatched late Monday to Esterline TA Aerospace in the Valencia neighborhood of Santa Clarita, north of Los Angeles.
Crews were unable to determine what the irritant was. City News Service says the workers were taken to hospitals in unknown condition.
The company makes clamps, insulation and other materials for the aerospace industry.
A telephone message left with the company Tuesday morning seeking comment was not immediately returned.