The official Twitter account of Jack Dorsey, the co-founder of the social media platform, was hacked on Friday.

One of the first tweets sent from his "compromised" account was the N-word. Another, sent minutes later, praised Hitler.

Dorsey has more than 4.2 million followers.

"We're aware that @Jack was compromised and investigating what happened," the platform's official communications handle tweeted minutes later.

This is a developing story. Check back for updates.