Kanye West at an event announcing his partnership with Adidas on June 28, 2016 in Hollywood, California.

Getty’s image

adidas said it was investigating allegations made by staff related to musician Ye’s behavior during its partnership with the German sportswear brand and responses from senior figures of the company.

The company said in a statement late Thursday: “It is currently unclear whether the allegations made in the anonymous letter are true. However, we take these allegations very seriously and have taken the decision to launch an independent investigation into the matter immediately to address the allegations.”

It follows a Rolling Stone article published Tuesday with anonymous allegations that Ye showed pornographic and sexual material to Yeezy staff during meetings and made sexual remarks to female staff. CNBC has not independently verified the claim.

Rolling Stone also said a group of former Yeezy team members had sent an anonymous letter to Adidas accusing senior leaders at the company of “turning a blind eye” to the behavior and taking “deferred action” to address it. It reportedly called for a public apology to the team.

Representatives for Ye were not immediately available for comment when contacted by CNBC.

You lost billionaire status after Adidas dropped it

Adidas ended its partnership with Ye, formerly known as Kanye West, in October. It said his recent comments and actions were “unacceptable, hateful and dangerous.”

Gap and Foot Locker later said they would remove Yeezy products from their stores. Designer brand Balenciaga announced it was cutting ties with the rapper and producer a week earlier.

Adidas also said it does not tolerate hate speech or offensive behavior and is in ongoing conversation with employees about events leading up to the end of Ye’s partnership.