“It is with profound sorrow that we announce the tragic passing of Michele and Rob Reiner,” a spokesperson for the family said in a statement published by the Los Angeles Times.
“We are heartbroken by this sudden loss, and we ask for privacy during this unbelievably difficult time.”
The outlet also reported that there was no sign of forced entry into the home, and that a family member was being interviewed.
The Los Angeles Police Department’s Robbery Homicide Division is still investigating the shocking discovery inside Reiner and Singer’s home.
Variety first reported the LAPD’s grim discovery was made on Sunday, local time, at the film-maker’s Brentwood home in California.
According to police, the deceased were a man and a woman, aged 78 and 68.
A spokesperson for the department noted that detectives from LAPD’s Robbery-Homicide Division – a department tasked with handling high-profile investigations – were quickly called to the scene.
TMZ reports that the Los Angeles Fire Department were called to the home about 3.30pm local time on Sunday for medical aid and found a man and a woman dead inside the house.
According to the outlet, the LAPD arrived about 10 minutes after LAFD and has now opened an investigation into the two deaths.
It was soon confirmed that the deceased man and woman were Reiner and Singer.
Reiner first found fame as an actor, with a lead role in the 1970s US sitcom All in the Family. But his career blossomed behind the camera, and he directed a string of hit movies, including When Harry Met Sally, The Princess Bride and A Few Good Men, which was nominated for Best Picture in 1993.
His wife, Singer, was a photographer who shot Donald Trump’s photo for the cover of his 1987 book The Art of the Deal.
Reiner and Singer were first introduced while he was directing When Harry Met Sally. They went on to marry that same year, 1989, and later welcomed three children together: Jake, Nick and Romy.
The director was also the adoptive father of actress Tracy Reiner, the daughter of his first wife, the late Laverne & Shirley star Penny Marshall.
Reiner continued to direct throughout his 36-year marriage to Singer on films such as The Wolf of Wall Street, The American President, The Bucket List and Spinal Tap II: The End Continues.
According to his IMDb page, he still had one more directorial project left in the pipeline before his death: the live concert film Spinal Tap at Stonehenge: The Final Finale, which was set for release next year.
Sign up to Herald Premium Editor’s Picks, delivered straight to your inbox every Friday. Editor-in-Chief Murray Kirkness picks the week’s best features, interviews and investigations. Sign up for Herald Premium here.