Elon Musk's X was down for thousands of users in the U.S. on Saturday, according to outage tracking website Downdetector.com.

Musk said in a social media post this week that Tesla’s long-awaited robotaxi service will roll onto the streets of Austin, Texas on June 22. The Tesla CEO is betting the company’s future on autonomous vehicles (AV) and a robotaxi service – which will hopefully inject much-needed cash just as the company’s sales and profits are slumping.

The CEO’s embrace of nascent AI technology is a shift from the company’s early days when it used off-the-shelf technology for electric cars.