The communications regulator said Monday that Tinder was included on a list of online services operating in Russia that are required to provide user data on demand to Russian authorities, including the FSB security agency.

Tinder, an app where people looking for dates swipe left or right on the profiles of other users to reject or accept them, will have to cooperate with Russian authorities or face being completely blocked in the country. The rule would apply to any user's data that goes through Russian servers, including messages to other people on the app.

Tinder, which is based in West Hollywood, California, said Monday that it has registered to be compliant with Russian authorities but added that it has "not handed over any data to their government." But the company did not say whether it plans to do so in the future.

Russia adopted a flurry of legislation in recent years tightening control over online activity. Among other things, internet companies are required to store six months' worth of user data and be ready to hand them over to authorities.