In Monrovia in California, a shelter-in-place has been ordered after a hazardous materials spill.
The shelter-in-place was ordered on Monday shortly after noon, reported NBC.
An unknown chemical odor sickened about 150 employees at a local business, prompting the order.
The shelter-in-place is for employees and residents in the 100 block of Railroad Avenue.
A hazardous materials crew responded to the situation.
Monrovia is in San Gabriel Valley in Los Angeles County.
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