Elon Musk’s social media company X was fined 120 million euros ($140 million) by EU tech regulators on Friday for breaching EU online content rules, the first sanction under landmark legislation which will likely draw the U.S. government’s ire.

Rival TikTok staved off a penalty with concessions.

The EU sanction against X followed a two-year-long investigation under the bloc’s Digital Services Act (DSA), which requires online platforms to do more to tackle illegal and harmful content.