Every TikTok user is being urged to delete the app from their phones to protect their personal data from "hostile" threats.
Alicia Kearns, who chairs the Foreign Affairs Committee, said users should "without question" get rid of the app. The senior Conservative MP suggested the video-sharing platform is linked to China's efforts to build a "tech totalitarian state".
There have long been concerns around TikTok over its links to China because its parent company, ByteDance, was founded in the country, and critics have raised fears data could be passed to the Chinese government.