The British government has called on Elon Musk to act responsibly after the tech billionaire used his social media platform X to unleash a barrage of posts that officials say risk inflaming the violent unrest gripping the country.

Justice Minister Heidi Alexander made the comments Tuesday morning after Musk posted a comment saying that “Civil war is inevitable” in the U.K. Musk later doubled down, highlighting complaints that the British criminal justice system treats Muslims more leniently than far-right activists and comparing Britain’s crackdown on social media users to the Soviet Union.

“Use of language such as a ‘civil war’ is in no way acceptable,’’ Alexander told Times Radio. “We are seeing police officers being seriously injured, buildings set alight, and so I really do think that everyone who has a platform should be exercising their power responsibly.’’