A source tells PEOPLE that reports that Chris Rock stormed off stage while performing a comedy set at a private venue are untrue, as is the report that he left because children were in the audience. Here's what happened.

According to Newsweek, Chris Rock abruptly ended his performance at a holiday party hosted by billionaire Anthony Pratt last weekend (Dec. 7) after saying, “Our new push will be outer space. We’ll put all the Mexicans on the rockets.”

Chris Rock wasn’t mad when he walked off stage during a private comedy show, PEOPLE reports. “He didn’t storm off. He did stop performing, but he wasn’t angry,” a source told PEOPLE. “He simply put the mic down and walked away.”