TikTok users in the United States were not able to watch videos on the popular social media platform on Saturday evening, just hours before a federal ban on the popular social media platform was set to take effect.

It's not the first time TikTok has sent a politically motivated pop-up message about the U.S. government's efforts to ban the app due to concerns over its Chinese ownership. In March 2024, the app asked users to call their representatives to ask for an end to the ban.

The popular video app stopped working shortly after signaling to users it might go offline, with a federal law barring U.S. companies from hosting or distributing TikTok set to take effect on Sunday.