Adidas probing allegations against Kanye West

A German sportswear giant has launched an investigation against Kanye West after a report detailed alleged inappropriate behaviour.

It comes just weeks after Adidas ended its partnership with the the US rapper.

 "It is currently not clear whether the accusations made in an anonymous letter are true," Adidas said in a statement.

"However, we take these allegations very seriously and have taken the decision to launch an independent investigation of the matter immediately to address the allegations."

US magazine Rolling Stone recently said former members of the team involved in "Yeezy" had released a letter alleging Adidas leaders were aware of the behaviour, which went on for years, but turned a blind eye.

The report, citing former unnamed Yeezy and Adidas staff, alleged probe is under way for alleged indecent things and an intimate photo of Kanye's ex-wife Kim Kardashian in job interviews.