Iranian users of Signal messaging service say app blocked

TEHRAN: Iranian users of the Signal messaging service said Monday they have lost access to the app on their mobile devices.

Users in several neighborhoods in the capital Tehran and at least three other major cities contacted by The Associated Press said access to the app was blocked gradually beginning in the afternoon.

They said they could use the system through virtual private networks, services that shield internet users by encrypting their data traffic. Some still had access through desktop version of the app.