Elon Musk's social media platform X was down again for thousands of users in the United States, according to Downdetector.com.

The number of outage reports rose to more than 40,000 after easing a bit earlier in the day, user-submitted data on the outage-tracking website showed.

More than 10,800 users in the UK also reported outage earlier in the day.

The cause of the outage was not immediately clear and X did not respond to a Reuters request for comment.