If you don’t want to receive someone’s messages or calls, here’s how to block them on the Messenger mobile app: Open the Messenger app. Search for the person you want to block.

The possible blocking of calls is being justified by authorities as a crackdown on anti-fraud calls.

Russia's communications regulator, Roskomnadzor, claimed the apps have become "the main services used to defraud and extort money, and to involve Russian citizens in sabotage and terrorist activities.