Oct. 21 (UPI) -- U.S. retail and pharmacy chain CVS was experiencing technical issues Tuesday.

A customer on social media platform X inquired in frustration after 12:15 pm. local time: "How long CVS' system has been down."

CVS confirmed it was experiencing "a known system outage," the Rhode Island-headquartered company said in a reply just after 12:30 p.m. local time.

It's unclear how many stores are being affected by the tech glitch.

Users on Reddit also chimed in on the ongoing issue.