Russian authorities have begun restricting access to Telegram, one of the country’s most popular social media apps, as the government continues to push everyday Russians toward its own tightly controlled alternatives to foreign tech platforms.

On Tuesday, the government said it was restricting access to Telegram for the “protection of Russian citizens,” accusing the app of refusing to block content authorities consider “criminal and terrorist.”

Russia’s telecommunications regulator Roskomnadzor said in a statement that it would continue to restrict the operation of the Telegram messenger “until violations of Russian law are eliminated.”