The comments came after Elon Musk, the billionaire owner of X and a top adviser to President Donald Trump, claimed in an appearance on Fox Business Network’s “Kudlow” show that the cyberattackers had “IP addresses originating in the Ukraine area” without going into detail on what that might mean.

X users have reported that the site, formerly known as Twitter, has experienced an outage for the third time in a day.

U.S. officials have not determined who was behind an apparent cyber attack on the social media site X that limited access to the platform for thousands of users