The social media platform X, formerly Twitter, was experiencing intermittent outages on Monday, mostly on its app, according to Downdetector, which tracks reports of problems from users on websites.

The first outages on X, which Elon Musk bought for $44 billion in 2022, were reported before 6 a.m. Eastern time, after which the site and app seemed to resume functioning. But at about 10 a.m. more problems arose, and there were 41,00 reports of outages on X, according to Downdetector. Shortly after 11 a.m., a third spike of reported outages emerged, and the site remained down for many users.

More than half of the outage reports were from users of the app, Downdetector’s data showed.

This is a developing story.