U.S. President Donald Trump's former national security adviser John Bolton said on Friday that Twitter had returned control of his personal account to him after it had been taken over by the White House.

"We have now liberated the Twitter account, previously suppressed unfairly in the aftermath of my resignation as National Security Advisor," Bolton told his more than 790,000 followers in his first tweets since resigning in September.

"In full disclosure, the @WhiteHouse never returned access to my Twitter account. Thank you to @twitter for standing by their community standards and rightfully returning control of my account," he wrote.