Kanye West's cousin Ricky Anderson has tragically lost his one-year-old son.

Anderson announced the heartbreaking news via Instagram, sharing a sweet photo of Avery.

'Today was the worst day of my life!! I lost my lil man and gained an angel! Rest in Paradise!!!! I love you man,' he wrote.

ADVERTISEMENT

Avery died in his sleep and there were no previous sign of illness or distress, according toTMZ.

Family tragedy: Kanye's cousin Ricky Anderson (pictured) has tragically lost his one-year-old son

Rest in Peace: One-year-old Avery died in his sleep and there were no previous sign of illness or distress

Anderson is from West's late mother Donda's side of the family and works as a consultant at Kanye's label, G.O.O.D. Music, in L.A.

Click here to resize this module

He also shared several sweet videos of his late son, captioning one 'Missing him so much!!' and tagging the child's mother, Erica Paige.

The little guy was a prominent fixture on both his father and mother's Instagram posts, who appeared to shower him with love.

Avery had just celebrated his first birthday with a Disney-themed party.

Doting father: The grieving father posted this photo in easier times with the caption,'In love with this kid!'

Kanye has yet to comment on what is another tragedy following several difficult months for him and his wife Kim Kardashian.

Kim was robbed at gunpoint in October while attending Paris Fashion Week and in November - around the anniversary of his mother's death - Kanye cancelled his Saint Pablo Tour after an onstage breakdown.

ADVERTISEMENT

The breakdown, which saw a 15-minute rant attacking his friend Beyonce and begging Jay Z to call him, led to a stay in the hospital for 'temporary psychosis.'

Heartbreaking: Avery had just celebrated his first birthday with a Disney-themed party