More than two-thirds of American teens use TikTok

Why TikTok is being banned for some government employees

The app has a huge fan base in Pakistan, where many people use it to market and sell goods online

The authority said TikTok would ask users to again provide their date of birth before allowing them back onto the app

Italian investigators have been probing TikTok since the death last week of a 10-year-old girl who allegedly participated in a 'choking game'