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Pornhub and YouPorn, the biggest adult websites in the world, have been blocked in Russia.

And, things have become very odd.

The site has been blocked by the Russian state watchdog Roskomnadzor, which is known in English as the Federal Service for Supervision of Communications, Information Technology and Mass Media.

Among other things, that agency is in charge of monitoring the internet and blocking sites that the government doesn’t want to be used.

And, the latest sites to fall victim to that are Pornhub and YouPorn, the world’s biggest collections of free pornography.

The move began on Tuesday but put in practice previously issued court decisions, according to the Moscow Times, and could be reviewed later.