TikTok, which is used by more than 150 million Americans and is owned by Chinese tech giant ByteDance, has faced growing calls from US lawmakers for a nationwide ban over concerns about possible Chinese government influence. 

TikTok “posed a security threat to the city’s technical networks,” the administration of New York City Mayor Eric Adams said in a statement.

New York City agencies are required to remove the app within 30 days and employees will lose access to the app and its website on city-owned devices and networks. New York State had already banned TikTok on state-issued mobile devices.