Kyle Larson has been suspended from NASCAR for dropping a racist slur during a virtual racing event.

The star driver was competing in an iRacing event Sunday night when he seemingly lost communication on his headset. While doing a microphone check, Larson said, “You can’t hear me?” Apparently believing he couldn’t be heard, he then uttered the N-word.

Larson posted a video apology on Monday, saying, “I just want to say I’m sorry. Last night I made a mistake and said the word that should never ever be said and there’s no excuse for that.”

His team, Chip Ganassi Racing, also suspended Kyle without pay and two of his sponsors — McDonald’s and Credit One Bank — cut ties with him.