Twitter has been left red-faced after it briefly suspended its own CEO's account.
For a while late Tuesday, attempts to reach Jack Dorsey's profile produced an error message saying it had been suspended. That prompted speculation his account might have been hacked or automatically shut down because of a high number of complaints from other users.
After it came back online, Dorsey tweeted that the suspension was the result of "an internal mistake."
That provoked angry responses from some people who asked how many regular users' accounts might also have been accidentally frozen by the company in the past.