Avery, who was nearly 17 months old, died in his sleep.
The West family experienced a tragedy on Monday, as Ricky Anderson, Kanye's cousin, revealed that his one-year-old son, Avery, had died.
Anderson, who works in A&R at GOOD Music, shared the heartbreaking news on Instagram by posting a black-and-white photo of Avery with the caption: "Today was the worst day of my life!! I lost my lil man and gained an angel! Rest in Paradise!!!! I love you man."
Avery died in his sleep, reports TMZ, and he apparently showed no prior signs of illness.
Avery's mother also shared an emotional Instagram post in memory of her late son.
This life in so unfair. I love you with everything inside me and it is with incredible, unbearable pain that I will have to try to find the strength to do a single thing without you. I am so grateful for being able to spend almost 17 months with you. You brought me so much happiness and I'm so proud of how hard you fought. Thank you for all the laughs, cuddles, hugs and kisses, you took care of me in a way no one else could. My heart is forever broken. I love you so much, mommy is with you.