The Dutch Data Protection Authority announced Friday it has launched an investigation into TikTok, a Chinese video-sharing social networking service, over whether children’s privacy is being adequately protected.

“A huge number of Dutch children clearly love using TikTok,” said Monique Verdier, deputy chairman of the Dutch DPA. However, under Dutch law and under the EU’s General Data Protection Regulation (GDPR), “children are seen as particularly vulnerable because they are less aware of the consequences of their actions, especially when it comes to sharing personal data on social media,” stated the Dutch DPA.

Verdier said the Dutch DPA will investigate the following areas: whether the app has a privacy-friendly design; whether the information TikTok provides when children install and use the app is easy to understand and adequately explains how their personal data is collected, processed, and used; and whether parental consent is required for TikTok to collect, store, and use children’s personal data.

The Dutch DPA said it expects to publish its initial findings later this year.