A federal appeals court on Friday revived part of a lawsuit accusing Elon Musk’s X of becoming a haven for child exploitation, though the court said the platform deserves broad immunity from claims over objectionable content.

While rejecting some claims, the ninth US circuit court of appeals in San Francisco said X, formerly Twitter, must face a claim it was negligent by failing to promptly report a video containing explicit images of two underage boys to the National Center for Missing and Exploited Children (NCMEC).