Thousands of users reported issues or outages with Outlook and other Microsoft services on Saturday afternoon.

Microsoft Outlook, 365 and other services crashed Saturday, affecting tens of thousands in the United States and millions globally before services were restored in less than an hour.

A heat map on the website Downdetector showed that Buffalo, Toronto, and New York City were among the hot spots for service outages.

We’ve identified a potential cause of impact and have reverted the suspected code to alleviate impact,” Microsoft said in the posts, which were published by a company page

The disruption, which has been resolved at the time of writing, was mainly contained to the New York, Chicago, and Los Angeles areas.

Thousands of Microsoft customers were unable to access Outlook, including email, and other services, after Microsoft 365 experienced an outage Saturday afternoon. Shortly after services were restored,

Tens of thousands of Microsoft Outlook users reported issues with the e-mail service on Saturday afternoon. Microsoft 365, which manages services such as Outlook, Excel and PowerPoint, posted an update to X at 5:01 p.