Kim Kardashian is increasingly concerned about her four children’s time with their father, Kanye West, according to friends. The 43-year-old reality star is reportedly worried about what her kids—North, 11, Saint, 8, Chicago, 6, and Psalm, 5—might be exposed to while they are with Kanye, 47, and his new wife, Bianca Censori. Sources close to Kim say she is alarmed by the constant stream of stories about Kanye and Bianca and fears the environment may not be healthy for the younger children.

Kim, who does not communicate directly with Kanye but instead uses intermediaries like nannies, her mother Kris, or lawyers, reportedly receives updates from North through pictures and videos when the kids are with their dad. She is now seeking an urgent sit-down meeting with Kanye and Bianca to discuss co-parenting and establish new ground rules.

Recent controversies surrounding Kanye include accusations from his former chief of staff at Yeezy, Milo Yiannopoulos, who alleged that Kanye has been spending over $50,000 on laughing gas from a celebrity dentist. Yiannopoulos shared these claims in a sworn affidavit and on social media. Additionally, friends of Bianca have claimed that she is being controlled by Kanye, who selects her increasingly provocative outfits. Notably, Bianca recently caused a stir in Beverly Hills by wearing revealing clothing and partying in a sheer dress.

On “The Kardashians” reality show, Kim previously spoke about North’s positive view of her dad, noting that North enjoys the unstructured environment at Kanye’s place, which contrasts with the more controlled lifestyle at Kim’s home. Kim’s representative has been contacted for a comment on the situation.