The University of Minnesota has been hit by another incident of racially charged vandalism on its Washington Avenue Bridge in Minneapolis.

A panel advertising the Muslim Students Association was discovered Thursday to have been painted over with the word “ISIS.” The panel later was painted white to cover the graffiti, at the student group’s request.

The Minnesota chapter of the Council of American-Islamic Relations is calling for a hate crime investigation.

“University administrators and state religious and political leaders must speak out forcefully against the rising anti-Muslim hate in our society that results in such disturbing incidents,” executive director Jaylani Hussein said. Related Articles Gophers cancel sports activities to free time to vote on Nov. 3

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University police on Friday released two surveillance photos of a suspect seen walking over the bridge about 3:45 a.m. Thursday.

Last month, an anti-Muslim organization known as the Horowitz Freedom Center targeted Students for Justice in Palestine groups at the U and elsewhere with posters and an online campaign alleging the groups are fronts for Hamas, the Palestinian faction that the U.S. government considers a terrorist group.

The Jewish Community Relations Council of Minnesota and the Dakotas also condemned “the hateful and anti-Islamic graffiti” directed at the U student group.

“There is no place in our community for racist, xenophobic, anti-Islamic, and other bigoted ideas,” JCRC executive director Steve Hunegs said in a Thursday statement.

University President Eric Kaler and other administrators issued a statement Thursday condemning both events on campus.

“They are abhorrent actions that will not be tolerated on our campus. The University of Minnesota must be a safe and welcoming campus for all students, including, of course, members of our Muslim community. Such hateful speech runs counter to the values of our institution, which must include a climate that encourages the thoughtful and respectful exchange of ideas. We can disagree on issues, but cannot accept targeted hate,” the statement read.

In early October, College Republicans at the U were targeted with vandalism after painting a pro-Donald Trump slogan on the Washington Avenue Bridge’s sheltered walkway, where student groups advertise each year.

Someone painted “Stop White Supremacy” over panels that read “TRUMP PENCE 2016” and “BUILD THE WALL.”

Kaler drew criticism from students of color and others when he issued a statement criticizing the vandalism in that case and defending “the free flow of ideas, even those that are offensive to some.”