According to reports, Rapper Mac Miller died on Sept. 7 after an apparent overdose. The Los Angeles Fire Department responded to a call made from his LA home on Sept. 7 at 11:42 a.m, according to Radar Online. The police confirmed to the outlet that they found him dead when they arrived.

Celebrities and fans took to Twitter to mourn the reported news. Scroll through the gallery below to see the heartbreaking tweets.

If you or someone you know is struggling with substance abuse, contact the Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline at 1-800-662-HELP (4357).