WhatsApp isn’t working right now for many of its users around the world as the chat app currently appears to be unable to send or receive messages.

Users are reportedly experiencing the problem mostly in parts of Europe, India, and parts of north and south America, according to the website Down Detector. Reports of outages began around 1 p.m. Pacific Time, according to the site. The chat app was back up and running around 4:30 p.m. PT, a WhatsApp spokesperson told VentureBeat in an email.

“Earlier today, WhatsApp users in all parts of the world we’re unable to access WhatsApp for a few hours. We have now fixed the issue and apologize for the inconvenience,” a WhatsApp spokesperson told VentureBeat in an email.

Above: DownDetector.com map screenshot taken shortly before 3 p.m.

Updated 5:00 p.m. with statement from WhatsApp.

Updated 3:35 p.m. to include India among areas impacted most by the outage.