AceShowbiz - Caitlyn Jenner missed her son Brody Jenner's wedding in Indonesia.

"The Hills" star-turned-DJ is tied the knot with Kaitlynn Carter in Nihi Sumba Island in Indonesia on Saturday, June 02, with mother Linda Thompson and brother Brandon Jenner among the guests.

However, Caitlyn was not at her son's wedding due to work commitments.

The former Olympian, who was known as Bruce until 2015, posed for photos at an amfAR event in Austria on Friday, when a Life Ball plane flew through the European country to raise money for the organisation's research into finding a cure for AIDS.

A source told People.com that the 68-year-old "has work commitments that have been set up for months and couldn't be changed in the end". TMZ reported that Brody was devastated his father was skipping out on his big day.

According to People, Caitlyn is instead throwing the newlyweds a huge party for when they return to Los Angeles.

Brody, 34, proposed to 29-year-old model Kaitlynn in May 2016, after two years of dating.

"I couldn't be more in love with this woman and I can't wait to spend the rest of my life with her," the DJ said at the time.

Caitlyn has been involved in the couple's wedding festivities in the build-up to the big day, and celebrated her future daughter-in-law when she attended her bridal shower at the Santa Anita Park racetrack in Los Angeles back in April.

"Went to my first bridal shower," she captioned a photo of her and Kaitlynn on Instagram. "I had so much fun! PS so much better than Bachelor parties!"

Kaitlynn sweetly replied: "I'm so happy you were there!!! It meant a lot to me!!"

Brody previously revealed his sisters Kendall Jenner, 22, and Kylie Jenner, 20, also won't make it to the wedding, as they haven't even responded to their invitation.

"My two little sisters, we never even heard from them," Brody told People. "They never even RSVP'd, I don't think. We sent them an invite but we just never heard anything back.

"Well, they'll be missed. I would have loved to have had them there."