Iran has now been under an almost complete internet blackout for more than two days, dramatically limiting Iranian citizens' ability to communicate with the outside world and leaving much of what is happening inside the country shrouded in uncertainty.
Since last night, only a limited number of images and videos have filtered through to global audiences. Yet those fragments suggest that, despite the shutdown, the determination of protesters remains. Even more so, observers say the blackout has intensified the sense of urgency, as well as heightened the risks on the ground.
