Kevin Mayer has quit TikTok just months after becoming chief executive of the Chinese video app accused by the Trump administration of threatening national security, according to a letter to employees seen by the Financial Times.
Mr Mayer told employees at TikTok and ByteDance, which controls the app, of his decision to leave on Thursday, people briefed about the matter said.
Vanessa Pappas, currently general manager of TikTok, will become interim head, according to the letter.
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