Russia’s internet watchdog has banned some of the world’s most popular video sites including YouTube and Vimeo, citing their “potential for the dissemination of material considered harmful.”

The Federal Service for Supervision of Communications (Roskomnadzor), which regulates the country’s internet, said it is taking measures to protect the safety of the public and the content of these websites.

The decision was announced Friday.

Roskobor has the authority to ban websites and sites on the grounds of the safety and security of the Russian people.

It is not immediately clear whether Roskoman is targeting sites that feature children or children who are underage, according to the Federal Service of Supervision website.

Roskobotan also has the power to ban video sites.

Roskinabor said in a statement Friday that the agency’s ban would not impact the availability of YouTube and other video services.

The agency did not immediately respond to a request for comment from The Associated Press.

Russia has long struggled with a rapidly expanding internet.

The country has more than 1.4 billion internet users, including nearly two million children, according the Roskosnaprofoto site.