A University of Pennsylvania law professor is under fire for comments she reportedly made at a national conservatism conference last weekend, according to multiple media sources.

During a panel on immigration at the conference, Amy Wax said that immigrants to the United States are too loud and responsible for an increase in “litter”. She then advocated an immigration policy that favored people from Western countries over migrants from non-Western ones, saying “that our country will be better off with more whites and fewer nonwhites.”

The comments were originally reported by Vox in an article on the conference.

“Conservatives need a realistic approach to immigration that ... preserves the United States as a Western and First World nation,” Vox quoted her as saying on the panel. “We are better off if we are dominated numerically ... by people from the First World, from the West, than by people who are from less advanced countries.”

Critics on social media and former Penn alumni were quick to respond, many calling for Wax to be fired.

Hey @Penn, I'm an alumna who is more than happy to end my regular contributions to the University if Amy Wax remains on staff. This is certainly not the first time Wax has made abhorrent statements as a Penn professor, but it absolutely needs to be the last. @PennLaw https://t.co/aJ9KByLihh — Sara-Paige💫 (@SP_Silvestro) July 17, 2019

The university offered the following statement to PhillyVoice in response:

“As a member of the faculty Professor Wax is free to express her opinions as provided in Penn’s policies protecting academic freedom and open expression. It is also the case that views of individual faculty members do not represent the views of the institution, but rather their own personal beliefs.”

Wax came under controversy back in March 2018 for suggesting that African-American students rarely graduate near the top of their class.