Corey Haim is dead, Los Angeles Police confirmed to TV station KTLA. He was 38. Police say it is believed the actor, who had a long history of substance-abuse problems, died from an accidental overdose at 3:30 a.m. Wednesday. Haim reportedly was found unresponsive at his Southern California apartment. His mother was said to be with him at the time.

He was pronounced dead Providence St. Joseph’s Medical Center in Burbank.Haim shot to fame in the ’80s after starring in several teen films, including The Lost Boys, Lucas and License to Drive. Most notably, he collaborated numerous times with Corey Feldman, and the pair were dubbed “The Two Coreys.” They starred in an A&E reality show with that name from 2007 to 2008. But Haim struggled with drug addiction for several years. At one point, Feldman told his friend he would no longer speak to him until he got sober.