Last week, Kim Cattrall posted on Instagram that her brother had been missing since January 30th. A day later, she announced that her brother had passed away, and thanks her "Sex and the City colleagues" in a post for their support.
Today, she posts an Instagram that states that Sarah Jessica Parker, which whom she's always had a rocky relationship, is taking advantage during Kim's tragedy in order to save her 'nice-girl' persona.
She deleted it a few minutes after it went up, and it is now posted again, apparently.
Source 1 (link to Kim's Instagram, since the actual post has been deleted)