" Concerns about TikTok, we will ban them in the US" - Mr. Donald Trump shared with reporters on the Air Force One airline on the evening of July 31, CNN reported.
President Donald Trump said he could use emergency economic powers or a decree. It is not yet clear exactly how the TikTok ban will be imposed.
The US president also stressed: "I have that authority."
Previously, many sources in the Donald Trump administration said that the US president is expected to sign a decree forcing Chinese company ByteDance - the owner of the social platform TikTok - to sell TikTok's activities in the US.
The move is aimed at addressing policymakers' concerns that foreign-owned TikTok could be a national security risk.
The White House has increased interest in the TikTok video sharing app of Chinese company ByteDance in recent weeks.
Before announcing a ban on TikTok in the US, Mr. Trump also mentioned this Chinese application on the morning of July 31, in which he said: "We are paying attention to TikTok. We can ban TikTok. We can do some other things. We are considering many alternatives related to TikTok."
The US government is assessing TikTok's national security and preparing to make a policy recommendation to President Donald Trump, Finance Minister Steven Mnuchin told reporters at the White House this week.
CNN said that ByteDance has reviewed the company's restructuring changes and according to many reports is considering the possibility of selling a majority stake in TikTok.
Microsoft is negotiating to buy TikTok, according to a source from the New York Times.
Chinese company ByteDance launched TikTok in 2017. The app became more popular during the COVID-19 pandemic with 2 billion downloads in April, CNBC quoted Sensor Tower as saying. TikTok's competitors include Facebook and Snap.
ByteDance investors have valued TikTok at $50 billion, Reuters reported earlier this week.