A pedestrian walks through the parking lot of a CVS Health Corp. store in Oakland, California, Aug. 2, 2019.

Michael Short | Bloomberg | Getty Images

CVS has opened its first drive-up testing location for the coronavirus in Massachusetts.

Starting around 3 pm on Thursday, the health-care company began offering tests in a pharmacy parking lot in Shrewsbury, about 50 miles west of Boston in Worcester County. It is not open to the general public and tests are limited to first responders, such as firefighters, nurses and police, company spokesman Joe Goode said.

CVS is one of four retailers that pledged on March 13 at a White House press conference that it would open drive-up testing locations to help detect COVID-19 and fight its spread.

Walmart, Target and Walgreens also committed to hosting drive-up testing in their parking lots. The other retailers have not yet announced the timing or locations of tests.

This is a breaking news story. Please check back for updates.