Users in the U.S. who opened the app were greeted with a message that read, "Sorry, TikTok isn't available right now."

TikTok went dark for users across the U.S. late Saturday as the app notified users of a ban that went into effect just days before President-elect Trump's inauguration.

Trump said in an NBC News interview on Saturday that he hasn’t decided what to do but was considering granting TikTok a reprieve.

The White House said on Friday that Tiktok should remain available to Americans but the timing of the Supreme Court ruling on a law banning the app means it must fall to the Trump administration.

A lawyer for TikTok content creators on Friday urged the White House and the Justice Department to clarify to Apple and Google that they can continue to offer the TikTok short-video app in app stores on Sunday when a legal ban is set to take effect.

But TikTok said after the court ruling on Friday that it “will be forced to go dark” if the administration didn’t provide a “definitive statement” to the companies that deliver its service in the U.S.

White House Press Secretary Karine Jean-Pierre called TikTok’s threat to “go dark” on Sunday, January 19th, a “stunt,” and that there is no reason for TikTok to shut itself down before President-elect Donald Trump is sworn in on the 20th.

The White House on Saturday called TikTok’s statement warning that it will “go dark” on Sunday unless President Biden steps in a “stunt,” arguing the app doesn’t have to take action before President-elect Trump is sworn in.

The White House on Friday said that the TikTok ban will fall to President-elect Trump’s administration after the Supreme Court upheld a law requiring the app’s China-based parent

As TikTok shut down on Saturday, a final message to US users suggested it was relying on President Trump to save the app.

President-elect Donald Trump told ABC News he is likely to grant TikTok a 90-day extension to avoid a ban in the United States.