The U.S. Commerce Department plans to issue an order Friday that will bar people in the United States from downloading Chinese-owned messaging app WeChat and video-sharing app TikTok.

The popular short-video app TikTok is firing back after U.S. President Donald Trump said Friday he would be banning it from operating in the United States.

The Federal Trade Commission and U.S. Justice Department are probing allegations TikTok failed to delete videos and personal information about users age 13 and younger as it had agreed to do, among other violations.