The European Union has launched a probe into TikTok’s spinoff Lite app and threatened to suspend an “addictive” feature on it that rewards users for watching and liking videos, amid child-safety concerns.

TikTok Lite arrived in France and Spain in March allowing users aged 18 and more to earn points that can be exchanged for goods like vouchers or gift cards through the app’s rewards programme.

The European Commission said in a statement on Monday that it has concerns about the app’s “risks of serious damage for the mental health of users”, including minors.

TikTok Lite is a smaller version of the popular TikTok app, taking up less memory in a smartphone and made to perform over slower internet connections.

TikTok last week failed to provide a risk assessment for the spinoff app by an April 18 deadline, the commission said, demanding the company now provide it by Tuesday.

It is threatening to impose interim measures including suspending the rewards programme in the European Union “pending the assessment of its safety”.

TikTok, owned by China’s ByteDance, has until Wednesday to present a formal defence against such a measure.

The commission also warned that if TikTok failed to reply to the request, it could impose fines of up to one percent of its total annual income or of its global turnover and periodic penalties up to five percent of its average daily income or annual turnover worldwide.