Kanye West and Kim Kardashian’s family has suffered a sudden and unthinkable tragedy

Kim Kardashian, left, and Kanye West arrive at the MTV Video Music Awards at the Microsoft Theater on Sunday, Aug. 30, 2015, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Kanye West is mourning the sudden loss of his cousin’s young son.

According to TMZ, the cousin, Ricky Anderson, who works for West’s production company GOOD Music, lost his 1-year-old son on Monday night. The child, Avery, died in his sleep. He had no known illnesses or prior medical conditions.

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“Today was the worst day of my life! I lost my lil man and gained an angel! Rest in Paradise!!! I love you man,” Anderson wrote on Instagram.

Avery had reportedly just celebrated his first birthday.

Rest in peace.

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