He stated that he was awaiting facts "to support [the] calculation that spam/fake accounts do indeed comprise less than 5% of users."
Mr. Musk has been outspoken about the need to eliminate spam accounts.
Analysts believed that he may be attempting to renegotiate the price or perhaps walk away from the acquisition.
Twitter shares plunged as much as 25% in pre-market trade after Mr Musk's remark.
https://www.thenews-chronicle.com/elon-musk-has-placed-the-twitter-acquisition-on-hold-due-to-bogus-account-information/