At least two brands have said they will suspend advertising on X, the platform formerly known as Twitter, after their ads and those of other companies were run on an account promoting fascism. The issue came less than a week after X CEO Linda Yaccarino publicly affirmed the company’s commitment to brand safety for advertisers.

The nonprofit news watchdog Media Matters for America documented in a report published Wednesday that ads for a host of mainstream brands have been run on the account, which has shared content celebrating Hitler and the Nazi Party.

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Ads for brands including Adobe, Gilead Sciences, the University of Maryland’s football team, New York University Langone Hospital and NCTA-The Internet and Television Association were run alongside tweets from the account that had garnered hundreds of thousands of views, CNN observed.

“We take the responsible placement of NCTA ads very seriously and are concerned that our post about the future of broadband technology appeared next to this highly disturbing content,” NCTA spokesperson Brian Dietz said in a statement, adding that the organization had opted into X’s brand safety measures including keyword restrictions and limiting its ad placement to the “home feed of target audiences.”

“Brand safety will remain an utmost priority for NCTA, which means suspending advertising on Twitter/X for the foreseeable future and heavily limiting NCTA’s organic presence on the platform,” Dietz said.

A spokesperson for Gilead said the company will pause its ad spending while X investigates the issue.

Jason Yellin, University of Maryland’s associate athletic director, expressed concern about the placement of the football team’s post on the account and said Maryland Football has not spent money on advertising on X since 2021, meaning X may have promoted the post despite it not being a paid ad.

A spokesperson for NYU Langone said in a statement that the hospital was “completely surprised by this and are extremely concerned with any appearance of our advertising and brand next to obviously objectionable content that promotes hatred,” adding that it expects its advertising partners to “act responsibly.”

X did not immediately respond to a request for comment from CNN. Hours after the Media Matters report was published Wednesday morning and CNN observed additional brands’ ads running on the account, the account appeared to be suspended.

Adobe did not immediately respond to requests for comment from CNN.