Hillsborough survivors and relatives have described their anger and disgust after the Grok AI chatbot built into the X social media app posted deeply offensive slurs about the tragedy.
The comments were posted in response to a request from an anonymous X user to write a "vulgar post" about Liverpool, specifically mentioning Hillsborough and Heysel.
Charlotte Hennessy, whose father Jimmy was one of 97 Liverpool fans fatally injured in the 1989 stadium disaster, said the poster - who had previously targeted families - had been "given a platform".
"He clearly thinks he's invincible and now he's got the added extra of being able to use Grok in an abusive and malicious way," she told the BBC.