Amazon appears to be experiencing an outage, and tens of thousands of shoppers say they're having trouble accessing Amazon's services.

According to outage tracker Downdetector, reports of issues surged Thursday afternoon, reaching about 20,000 by 3:49 p.m. ET on March 5. Complaints first spiked around 2:30 p.m., when roughly 18,000 users reported problems. The number briefly dipped to around 16,000 before climbing again.

Users on Downdetector said the problems ranged from checkout and payment failures to incorrect or fluctuating prices appearing on product listings.

Amazon did not immediately respond to a request for comment.