Secretary of State Mike Pompeo said late on Monday that the United States is "certainly looking at" banning Chinese social media apps, including TikTok.
"I don't want to get out in front of the president (Donald Trump), but it's something we're looking at," Pompeo said in an interview with Fox News.
U.S. lawmakers have raised national security concerns over TikTok's handling of user data. TikTok has said previously that it would not comply with any requests made by the Chinese government to censor content or for access to TikTok's user data, nor has it ever been asked to do so.
TikTok, a short-form video app owned by China-based ByteDance, was recently banned in India along 58 other Chinese apps after a border clash between India and China. New Delhi said on last Monday night it was among the 59 apps which it believed posed a "threat to sovereignty and integrity."
The head of TikTok India issued a statement later saying the firm has "not shared any information of our users in India with any foreign government, including the Chinese government."
Beijing last week also said that India's move to ban 59 Chinese-origin mobile apps could be a breach of World Trade Organization rules, and urged New Delhi to create an open and fair business environment.