Hours after a series of outages on Monday left X unavailable to thousands of users, Elon Musk claimed that the social media platform was being targeted in a "massive cyberattack."

"We get attacked every day, but this was done with a lot of resources," Musk claimed in a post. "Either a large, co-ordinated group and/or a country is involved."

Complaints about outages spiked around 6 a.m. ET Monday and again at 10 a.m ET, with more than 40,000 users reporting no access to the platform, according to the tracking website Downdetector.com.

Outage reports then spiked again around noon ET, and the latest appears to be ongoing. The outages appeared to be heaviest on the U.S. coasts.

Downdetector.com said that 56 per cent of problems were reported for the X app, while 33 per cent were reported for the website.

In March 2023, the social media platform then known as Twitter experienced a bevy of glitches for more than an hour as links stopped working, some users were unable to log in and images were not loading for others.