Amazon has temporarily closed a Kentucky warehouse after an unspecified number of workers tested positive for the coronavirus.

The online retailer said Tuesday that the warehouse at Shepherdsville was undergoing “additional sanitization."

Amazon says it is supporting the “individuals who are now in quarantine and recovering." The company says it is following all guidelines from local officials and is taking “extreme measures" to ensure the safety of employees at the site.

The company did not specify how many employees have been infected with the virus.