Kourtney Kardashian has slammed her sister Kim Kardashian in The Kardashians season four trailer.
In a clip for the reality show which was released on Tuesday, Kourtney labelled the SKIMS founder a "witch" during an explosive phone call.
"Are you happy? You're a different person, you hate us ... We're all just talking about it," Kim told her sister during the call.
While Kourtney, 44, insisted that she didn't want to fight, Kim, 42, continued, "You think things, so you get riled up. I think things, so I'm getting riled up."
Kourtney then responded, "You're just a witch and I hate you."
The trailer emphasised the changing dynamics of the family, particularly that of the two eldest Kardashian sisters.
Speaking more of the ongoing feud during a joint confessional with Kim, Kourtney said, "There's been a lot of tension. It's really hard to watch people talking about you. I don't feel understood."
During season three of the reality show, the two sisters clashed over their relationships with the fashion house Dolce & Gabbana.
The argument kicked off when Kim announced a collaboration with the luxury fashion brand four months after Kourtney worked with them on her Italian wedding to Travis Barker in May 2022.
"It's just legit copying my wedding," Kourtney said at the time. "She wasn't happy at my wedding. Everyone else was like, 'Woah, this is amazing. We're having the best time.' She could never give an acknowledgement."
Season four of The Kardashians will premiere on 28 September.
