(CNN) - Republican Sen. Jeff Flake of Arizona apologized Wednesday for his son's use of racial epithets, homophobic slurs and anti-Semitic remarks in social media.
"I'm very disappointed in my teenage son's words, and I sincerely apologize for the insensitivity," the first-term senator, who was elected last year, said in a statement. "This language is unacceptable, anywhere. Needless to say, I've already spoken with him about this, he has apologized, and I apologize as well."
BuzzFeed reported earlier in the day that Flake's high school-aged son Tanner used the controversial terms on Twitter and as a username for online games.
Tanner has since made his Twitter account private, but BuzzFeed took screen-grabs of some of his controversial tweets.
Flake and his two of his sons, including Tanner, made headlines last week after posting video from their recent survivalist expedition on a deserted island in the Pacific.
- CNN's Ted Barrett and Ashley Killough contributed to this report.