The 30-year-old was in London when he heard the tragic news and immediately ditched his commitments to catch a plane back to the U.S., according to reports.

The cause of death was unknown as WENN went to press. Kanye West has often spoken of the close relationship he shared with his mother, and he dedicated a song, Hey Mama, to her on his 2005 sophomore album Late Registration. - more on this story

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