Rapper Kanye West was unaware of his mother's plans to undergo cosmetic surgery and is "in denial" about Dr. Donda West's unexpected death, according to reports.

West, 58, passed away in Los Angeles on Saturday following possible complications from a tummy tuck and breast reduction operation she had on Friday. An autopsy performed on Wednesday proved inconclusive.

The Gold Digger hitmaker was in London when he found out the tragic news, and immediately flew back to the U.s. to mourn his loss.

And according to the New York Daily News, the hip-hop star is still struggling to come to terms with his mother's death.

A family friend says, "I don't think Kanye was aware Donda was getting the surgery, or certainly the extent of it."

"He loved and supported her just the way she was. He thought she was beautiful. (But) Donda had image issues, like a lot of women."

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.

Her funeral has been scheduled to take place on Tuesday in Oklahoma City, Oklahoma, according to the close pal.