” Two Long Island high school students have been suspended for allegedly bringing a Confederate flag to school.

Brother Gary Cregan, principal of St. Anthony’s High School in South Huntington, said the two seniors walked in with a Confederate flag draped around their shoulders during an after-hours sporting event at the school.

The students were initially suspended for 10 days, but Cregan decided Tuesday they won’t be allowed back, Brown reported.

Cregan wrote a letter to parents saying the use of any symbols “designed to revive past injustices or to inflame discrimination or racial intolerance, is completely unacceptable and profoundly offensive,” Newsday reported.

The students haven’t explained why they did it. St. Anthony’s is a private Catholic school and isn’t bound by the First Amendment right to free speech.

Still, the New York Civil Liberties Union said all people should be able to express their views freely, even the offensive ones.

“ Our motto is more speech, not censorship or punishment,” NYCLU director Donna Lieberman told Brown. “Helping children understand the impact of this patently offensive expressive activity.” “