According to TMZ, members of the Kardashian family "are adamant ... ANY public feuding between Rob and Chyna is unacceptable."
The sisters are particularly upset by their brother's comments in regards to the birth of their niece.
"They are ashamed the war has become a public spectacle and hurting the family name. Even worse than damaging the brand, family members worry Rob and Chyna are hurting 7-month-old Dream," the news site reports.
This comes after Kardashian alleged that his ex-fiancé, "had a baby out of spite" to get back at Tyga.
The family members are yet to posy anything about the feud publicly on social media.