In particular, users have had issues sending messages, and marking messages as unread. What's more, "In the wake of the catastrophic earthquake in Japan, Google set up an application to help people find relatives and friends lost in the disaster," the Guardian writes. "This service too seems to have been compromised." According to Google: "Relating to Google there is no issue on our side. We have checked extensively. This is a government blockage carefully designed to look like the problem is with Gmail."