San Francisco:Twitter CEO and co-founder Jack Dorsey's official account was briefly hacked on Friday by a group that called itself Chuckling Squad.
The account, which has over four million followers, tweeted a string of racist and anti-Semitic statements for about 20 minutes.
One of the posts suggested that the social media agency's San Francisco headquarters would be bombed while a few other messages contained racist comments against black people and referenced the Holocaust
The posts were quickly deleted from the account and appeared to have been posted using a third-party service called CloudHopper, reported The New York Times.
The micro-blogging website confirmed that it has regained control of the account and found no indication that the company's systems were compromised.