Kathy Hilton shared a number of photos from daughter Nicky Hilton's bridal shower on Tuesday.

Kim Richards' Ex-Husband Shares A Special Message For His Daughter On Her Wedding Day

Just days after Hilton's niece, Brooke Brinson, tied the knot in Mexico, the Hilton and Richards families came together for Nicky's shower. However, while both Hilton and Kyle Richards' daughters posed for photos, Kim Richards was noticeably absent.

In a group photo, Hilton and her youngest sister, Kyle Richards, posed with their daughters and friends around a cake. Whitney Davis, Kim Richards' oldest daughter, was seen in the picture, as well.

Kim Richards Has Returned To Social Media

A photo posted by Kathy Hilton (@kathyhilton) on May 26, 2015 at 5:34pm PDT

In a second photo, Hilton and her daughter, Nicky, posed with Kyle Richards in a mirror.

A photo posted by Kathy Hilton (@kathyhilton) on May 26, 2015 at 5:08pm PDT

Nicky shared a group photo from the bash, as well, which Kim was also missing from.

Just yesterday, TMZ reported Kim had allegedly suffered a relapse while in Mexico for her daughter Brooke's wedding, prompting her sober coach, who accompanied her to the ceremony, to quit.

"Kim was clearly under the influence of something, although no one seems to know what. Our sources say whatever Kim took or drank, she did so in private, but when she interacted with people at the wedding she was 'a mess.'"

While Kim was scheduled to return to rehab by Monday, she reportedly has yet to do so.