Cooper Noriega, a 19-year-old TikTok star, died Thursday at the age of 19.

Noriega was found dead at about 4:20 on the 500 block of North First Street in Burbank.

California, according to the Los Angeles County Medical Examiner-Coroner's Office.

The cause of death was unclear, and the case is still under investigation.

Hours before he was found dead, Noriega posted a video of himself on his TikTok account.

in which he wrote: "who else b thinking they gon d!€ young af"

Noriega has been open about his struggles with mental health and addiction on social media.

On June 5, Noriega shared a TikTok video announcing that he was starting.

a group to talk about their experiences with mental health on Discord, a messaging platform.