UPDATE: Kanye Investigated For Alleged Assault

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Beverly Hills police are investigating Kanye West as a suspect in an alleged assault case, ET has learned.

According to a police report, the alleged incident took place on the 8800 block of Wilshire Blvd. at approximately 12:15 p.m. PT.

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By the time police arrived at the location, Kanye, who was identified by the victim and several witnesses, had already left the premises.

This investigation is ongoing.

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A source close to West's fiancée Kim Kardashian told People that the altercation was instigated by an unidentified 18-year-old white male. The source claims the scuffle began when the man started allegedly shouting racial slurs towards the paparazzi and when Kardashian, 33, explained that "wasn't cool," he then began verbally attacking her and West, 36, with racial obscenities. Multiple reports claim that the rapper was just defending his fiancée.

's source insists that West "barely" hit the man.