Kanye West's baby cousin has died.

The 'Stronger' hitmaker's family have faced heartbreak after his cousin Ricky Anderson's little boy Avery, 16 months, passed away suddenly in his sleep, with no signs of illness or distress, TMZ reports.

Ricky - who works for Kanye's GOOD Music label - shared the heartbreaking news on Instagram.

He wrote: ''Today was the worst day of my life!! I lost my lil man and gained an angel! Rest in Paradise!!!! I love you man. (sic)''

He also shared a number of other photos and pictures of the little boy.

Tagging his partner Erica Paige in an image of Avery brushing his teeth, Ricky wrote: ''Missing him so much!! @erica.paige (sic)''

And on another photo he added the caption: ''You've taken a big piece of me with you! Your mom and I love you so much!! @erica.paige (sic)''

Erica also shared a heartfelt tribute to her little boy in which she said her heart would be ''forever broken''.

She wrote: ''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.''

Kanye and his wife Kim Kardashian West - who have children North, three, and Saint, 15 months, together - have yet to publicly comment on the tragic news.