LONDON — U.K. Prime Minister Keir Starmer on Wednesday vowed to take action against Elon Musk’s social media platform X after its Grok artificial intelligence system produced a flood of non-consensual sexually explicit deepfakes that included depictions of minors.

“It’s disgraceful, it’s disgusting, and it’s not to be tolerated. X has got to get a grip of this, and Ofcom has our full support to take action in relation to this,” Starmer said in a broadcast interview after thousands of nude deepfakes were published on X.

“This is wrong, it’s unlawful, we’re not going to tolerate it. I’ve asked for all options to be on the table,” he told the Greatest Hits Radio. “We will take action on this because it is simply not tolerable,” he added.

Earlier this week the U.K.’s communications regulator Ofcom said it had made “urgent contact” with X to establish whether there are grounds to investigate the platform under the U.K.’s Online Safety Act.

Technology Secretary Liz Kendall told MPs last year that current U.K. online safety laws do not cover all generative AI chatbots and she is looking at whether new legislation is required.

The Information Commissioner’s Office, the U.K. data watchdog, confirmed yesterday that it too is in touch with X amid concerns people’s personal data is being misused.

Musk has historically been highly critical of Starmer. Last January the tech billionaire made a series of unsubstantiated claims about the British PM’s role as chief prosecutor in the grooming gang scandal, and in summer 2024 suggested “civil war is inevitable” in the U.K.