Signage for the University of Pennsylvania's Wharton School stands outside of the new campus in San Francisco, California, U.S., on Friday, Feb. 3, 2012.  Photographer: David Paul Morris/Bloomberg

*A new Change.org petition calls on Donald Trump to condemn the racist incidents that have taken place across the country in his name since the election. It was launched over the weekend  in the wake of black students being targeted at his alma mater, the University of Pennsylvania.

TV writer, author and UPenn alum Lindsey Rosin started the petition on Friday after black freshmen were added to a racist social media group chat. The GroupMe thread, called “Mud Men,” contained racially charged posts calling for “daily lynching,” according to The Hollywood Reporter. In another chat, called “Trump is love,” one participant was called a “dumb slave.”

See a screenshot below:

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“We call on President-Elect and Wharton alumnus Donald Trump to break his disturbing silence on this issue,” reads the “UPenn Alumni Response” petition Rosin launched on Friday. “And to follow through on his declaration that the nation must come together by making a full-throated condemnation of these hate crimes and all hate speech.”

Rosin, whose TV credits include “Beverly Hills, 90210,” tweeted the petition at alums Elizabeth Banks and John Legend, and Ellen Pompeo has already called on her 1.2 million followers to sign.

On Saturday, the ongoing investigation resulted in the temporary suspension of a University of Oklahoma student who appeared to be connected to the messages. The investigation is now being coordinated between the Penn Police, the FBI and the University of Oklahoma Police.

Read the full petition below:

As proud University of Pennsylvania alumni we strongly and unequivocally condemn the racist activity taking place at our alma mater.

The UPenn motto is “Leges sine Moribus vanae,” which translates to “Laws without morals are useless.” These are the words of our school, and today’s acts lack all morality and go against the very core of what UPenn stands for.

What has occurred is NOT acceptable.

We will NOT stand for it on our campus or anywhere in this country.

We echo President Amy Gutmann, Provost Vincent Price and Executive Vice President Craig Carnaroli’s statement denouncing this activity and stand in solidarity with them and the work they are doing to “counteract its appalling bias.” While the investigation is underway, we urge the University to provide interim remedies to repair the hostile environment on campus.

We call on President-Elect and Wharton alumnus Donald Trump to break his disturbing silence on this issue, and to follow through on his declaration that the nation must come together by making a full-throated condemnation of these hate crimes and all hate speech.

We stand with the students on campus. Our nation may be deeply divided, between so-called Red States and Blue States, but The University of Pennsylvania’s fight song declares “Hurrah for The Red and the Blue.” UPenn is attended by students of all walks of life, from every corner of the planet. We are all one, and must come together in mutual understanding and respect for all people regardless of race, gender, religion, ability or sexual orientation. To do any less is to betray the values of our University and all that it has taught us.

We will not accept this behavior.

We will not be silent.