Matthew Perry death triggers joint LAPD, DEA criminal investigation

Authorities are investigating Matthew Perry's death more than six months after the "Friends" star died at his home from the "acute effects of ketamine."

"LAPD has an open investigation," officials with the Los Angeles Police Department confirmed to Fox News Digital on Tuesday. 

In addition, the Drug Enforcement Administration has teamed up with the LAPD to launch a criminal investigation into how Perry died, according to The Hollywood Reporter.

MATTHEW PERRY'S CAUSE OF DEATH...