Firefighters evacuated 150 employees from the warehouse, at 4950 Goodman Road, the department said on Twitter.
Six employees were transported to area hospitals for treatment. The employees had sustained injuries that were described as minor to moderate, according to the tweet.
“They were exposed to an unknown substance inside the building,” said Jody Hagemann, a spokeswoman for Cal Fire/Riverside County Fire Department, told The Press-Enterprise.
The fire department said hazmat teams arrived at the warehouse to isolate the substance involved and identity it.
But in a tweet on Saturday evening, the department said the team was unable to locate anything inside the facility.
“HAZ MAT team made entry into the building and were unable to locate anything. Incident will be terminated shortly,” the tweet said. “The business will reopen and resume normal operations.”
Investigators found the facilities failed to mitigate the exposure of employees to the coronavirus by not providing effective safety training and fined the company around $1,500.
“The employer did not ensure that all employees had access to, viewed and understood all COVID-19 training materials, and employees were unaware of key elements in the training materials, including but not limited to, sanitation of work stations and frequently touched objects in the workplace,” the citations, dated October 6, said.
This week, the company announced plans to hand out bonuses worth more than $500 million to U.S. workers over the holiday season.
