Elon Musk once suffered a mental breakdown amid growing concerns that his reputation was becoming tarnished while running Twitter, writer Ben Mezrich claims.

“He got to a point where he locked himself in his office, was so upset that the Twitter employees were considering calling in a wellness check by the San Francisco police because they thought he was going to self-harm,” the “Breaking Twitter” author alleged on CNBC Tuesday.

“I think he truly cares about his reputation.”

Mezrich, 54, claimed Musk, 52, is a much different person than who he was prior to purchasing the impactful social media platform in 2022.

“Twitter broke Elon Musk,” the nonfiction writer said. “Not only did he destroy this sort of global town hall, but he destroyed himself in the process.”

Mezrich attributed Musk’s alleged mental health decline to a series of negative incidents that took place last year.