Russia has blocked the Signal messaging app for alleged “violations” of the country’s legislation, state media regulator Roskomnadzor told the RBC business daily on Friday, Paralel.Az reports.

The messenger was restricted “due to violations of the requirements of Russian legislation, compliance with which is necessary to prevent the use of the messenger for terrorist and extremist purposes,” Roskomnadzor told RBC.

Users across Russia reported widespread outages of Signal on Friday.