Aaron Schlossberg, the Manhattan attorney whose rant against employees speaking Spanish at a Mexican restaurant provoked a firestorm on social media, said Tuesday that his diatribe was unacceptable.

He chose to issue his apology on Twitter where thousands of people called him a racist after a video of him chewing out the manager of Fresh Kitchen in midtown Manhattan surfaced on May 16. In the video, he threatens to call Immigration and Customs Enforcement to report employees who he assumed were in the United States illegally.