X, the company formerly known as Twitter, may not be labeling its ads properly, putting it at risk of — once again — running afoul of the FTC. There have been numerous reports over the last several days of ads appearing in users’ timelines without being labeled as such, according toTechCrunch, which was first to report on the stealth ads.

According to their reporting, as well as reports from industry groups, users have identified numerous ads that leave off the typical “Ad” label that identifies the post as paid advertising rather than a native post. It’s apparent that the posts are, in fact, ads when clicking into the “...” menu in the tweet, which indicates the tweet is a paid promotion.