SARASOTA, Fla. (AP) — A Florida high school student stirred a backlash when he held up a sign with a racially offensive message to invite his girlfriend to the prom.

The Herald-Tribune reports the 18-year-old Riverview High School student’s sign read: “If I was black, I’d be picking cotton, but I’m white, so I’m picking u 4 prom.”

After a photo of the sign was posted on Snapchat and shared across social media, school officials say they’re investigating.

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Sarasota school district spokeswoman Tracey Beeker says administrators have spoken to the student and his parents.

In a robocall to Riverview parents, acting principal Kathy Wilks said the school does not “condone or support” the student’s message.

An NAACP official encouraged school administrators to issue a district-wide response making it clear that the sign was inappropriate.