At about 9 a.m., professor Osvaldo Gutierrez and his wife saw the posters hanging on the Chemistry Building wall. Gutierrez immediately approached professor Jeff Davis, who called University Police, he said. The posters have since been removed.

University Police received the reports between about 9:30 a.m. and 12:25 p.m., spokeswoman Sgt. Rosanne Hoaas said.

One poster read, “A notice to all white Americans: it is your civic duty to report any and all illegal aliens to U.S. Immigration and Customs Enforcement. They are criminals. America is a white nation.”

“You hear about this stuff on the news, but I never really imagined it happening here,” said Gutierrez, who is of Mexican descent. “It’s really disturbing, and it’s not something you want to see, especially as a person of color.”