Jennifer Aniston mourned the death of camera assistant Gunnar Mortenson, who used to work on "The Morning Show." He died at the age of 39.

"This past week we suddenly and tragically lost Gunnar Mortenson," Aniston wrote on her Instagram Story feed Thursday. "As a camera assistant, he was so skilled and dedicated to his job."

A GoFundMe page has been created to help his wife, Keely, and 2-year-old son Lars. A sum of $126,539 has been raised so far.

"In memory of Gunnar, a page has been set up to help raise funds for his wife, Keely, and his 2-year-old son, Lars during this difficult time," the 53-year-old wrote. "We are going to miss you Gunnar."

Aniston also shared two photos featuring Mortenson with his family.

According to multiple reports, the camera assistant died Monday in a motorcycle crash. The accident took place on a Southern California highway. No other vehicles were involved in the crash.

Mortenson began his career by working for vehicle commercials in Denver. He moved to Los Angeles in 2007 and had worked in multiple shows, including "The Real World," "90210," "Sons of Anarchy" and "Transparent."

Apart from shows, he also worked in movies like "Jack and Jill," "Cooties," "Yes Day," "Hubie Halloween" and "All the Money in the World."

Aniston has been a regular on "The Morning Show" since 2019. She portrayed Alex Levy on the show. Many stars, including Reese Witherspoon, Billy Crudup, Steve Carell, Julianna Margulies and Will Arnett, are part of the TV series.

The actress will be next seen in the comedy flick "Murder Mystery 2" alongside Adam Sandler. She earlier posted a picture from the sets of the movie and wrote, "Back to work with my buddy."

She will next feature in the movie "Hail Mary," where she will portray Denise White.

US actress Jennifer Aniston reacts after winning best actress in a drama at the 26th annual Screen Actors Guild Awards
US actress Jennifer Aniston reacts after winning best actress in a drama at the 26th annual Screen Actors Guild Awards AFP / VALERIE MACON