Kanye West has intensified his ongoing feud with ex-wife Kim Kardashian, taking legal steps that suggest their co-parenting relationship is under severe strain.

According to TMZ, the rapper has issued a cease and desist letter accusing Kim of exploiting their four children North (11), Saint (9), Chicago (7), and Psalm (5) for personal and public gain.

One of the most serious allegations in the letter claims Kim left their daughter North alone in a parked car while she walked the red carpet at the Met Gala. Kanye is reportedly threatening legal action over the incident, which he considers a major breach of parental responsibility.

This development comes on the heels of controversial lyrics in which Kanye appeared to suggest that his bitter custody battle contributed to what he described as being "made a Nazi" a comment that has sparked widespread backlash. He also previously accused a "white woman" of having control over his Black children, an apparent reference to Kim.

As tensions rise, the high-profile custody dispute shows no signs of easing, with both parties now seemingly prepared to take the fight into the courtroom.