Focke used the N-word instead of "Nuggets" in the tweet, which was later deleted. He apologized in a later tweet.
"Earlier today I made a horrific error while attempting to tweet about the Denver-Utah game," he wrote. "I don't know how I mistyped, I had (and have) no intention of ever using that word. I take full responsibility for my actions. I have been sick to my stomach about it ever since. I'm truly sorry that this happened and I apologize to those I offended."
The Hornets said they are investigating the matter further.
"The Hornets are aware of the social media post by radio broadcaster John Focke,'' a team statement read. "As an organization we do not condone this type of language.''
The 2019-20 season was Focke's first season broadcasting for the team.