Elon Musk blamed widespread disruptions on his social media platform X on a “massive cyberattack,” which he claimed was orchestrated by a “large, coordinated group” or country.

Tens of thousands of users globally reported intermittent outages on X on Monday, according to the monitoring website Downdetector. New posts were failing to load for users in countries including the US, UK, France and India at various points throughout the day. The service disruptions lasted a few minutes each.