WhatsApp went down for some of its users around the world today, leaving some unable to send or receive messages.

Users reportedly experienced the worst outages in parts of western Europe, southern Brazil, and in the eastern United States, according to website DownDetector.com.

Above: Outage map as of 8:40 a.m.

Reports of outages began around 8 a.m. Pacific Time.

“Earlier today, WhatsApp users in parts of the world had trouble accessing the app for a couple hours. This issue has been fixed and we apologize for the inconvenience,” a WhatsApp spokesperson told VentureBeat in an email statement.

Updated 1:30 p.m. to include a statement from a WhatsApp spokesperson.