Presley Gerber, the 27-year-old son of supermodel Cindy Crawford and Casamigos tequila co-founder Rande Gerber, died Sunday at a rehabilitation facility, according to a family representative. The cause of death has not been publicly disclosed, and an autopsy is pending.

Presley Gerber began his modeling career as a teenager, signing with IMG Models at the age of 15. Over the years, he gained recognition in the fashion industry, following in the footsteps of his high-profile parents. He was also the brother of model Kaia Gerber.

The Los Angeles County Medical Examiner confirmed that Presley died at an undisclosed rehab center but has not released further details. The family has requested privacy during their time of mourning.

Presley Gerber had previously been open about his struggles with substance abuse and mental health challenges. Representatives for Cindy Crawford, Kaia Gerber, and the Medical Examiner’s office declined to comment on the circumstances surrounding his death.