There would be a meeting at the Oval Office involving US Vice-President J.D. Vance, Commerce Secretary Howard Lutnick, national security adviser Mike Waltz and Director of National Intelligence Tulsi Gabbard, said the official, confirming a CBS News report.
On Sunday, Trump said a deal with ByteDance to sell the short video app used by 170 million Americans would be struck before the deadline on April 5.
Trump set the deadline in January for TikTok to find a non-Chinese buyer or face a US ban on national security grounds due to have taken effect that month under a 2024 law.

US venture capital firm Andreessen Horowitz was in discussions to invest in TikTok as part of an effort led by Trump to gain control of the app, the Financial Times reported on Tuesday.