WhatsApp is down and the internet is freaking out

This is not a drill. 

WhatsApp, the Facebook-owned app that 1.2 billion people count on to communicate, is down. Like, in many places it's totally not working. And the internet is not pleased. 

According to Down Detector, service problems started around 1 p.m. PT on May 3 and were ongoing at time of publication. Large swaths of Europe, Brazil, and parts of the United States appear to be suffering the brunt of the outages. 

Frustrated users took to Twitter to vent.