US law enforcement officials were investigating the circumstances in an apparent homicide, the Los Angeles Police Department said in a statement.
The LAPD gave no details about the identities of the two deceased individuals. But a Los Angeles Fire Department official told Reuters earlier that a 78-year-old man and a 68-year-old woman were found dead at a home in west Los Angeles at an address that public records linked to Reiner.
Reiner, 78, co-starred in the 1970s hit CBS television comedy All in the Family and directed several well-known movies, including This is Spinal Tap, When Harry Met Sally, Stand by Me and The American President.