Following another alleged racist incident in the aftermath of the fraternity blackface photo, Cal Poly President Jeffrey Armstrong announced the university has turned over the recent cases of campus racism to the California Attorney General for an investigation.

In a video address to the campus community on Friday, Armstrong said he was “disgusted” to announce a new racist incident involving a Cal Poly fraternity. Armstrong said an individual posted an image in a private social media group that appeared to ridicule the blackface incident by sharing it.

The image was shared in a fraternity’s private Snapchat group, Armstrong said. The university found out about the image when fraternity members came forward with it.

“These vile and absolutely unacceptable acts cannot continue,” Armstrong said in the video address.

Cal Poly’s president said there is both overt and covert racism on campus, which stem from a legacy of 400 years of discrimination. Armstrong also said no institution is adequately able to address “historic and pervasive bias and inequities.”

Other allegedly racist incidents that have occurred in recent weeks include fraternity members dressing as gangsters and Hispanics and vandalism outside a liberal professor’s office that included the word “nigger,” as well as statements about race, intelligence and homicide rates.

Armstrong’s announcement came on a day in which the university is holding a panel discussion on diversity.