TikTok is facing a fresh European Union privacy investigation into user data sent to China, regulators said Thursday. The Data Protection Commission opened the inquiry as a follow up to a previous investigation that ended earlier this year with a 530 million euro ($620 million) fine after it found the video sharing app put users at risk of spying by allowing remote access their data from China.

Ireland's powerful Data Protection Commission (DPC) has opened a new inquiry into TikTok over the storage of European users' data in China after the short-video platform disclosed in April that some data had temporarily been stored on Chinese servers.

Irish law enforcement announced Thursday that it's looking back at TikTok for taking personal data from users around the European Economic Area and transferred it to China.