Thousands of users across Asia, Europe, America and Canada are unable to connect to WhatsApp on both Android and iOS today.
People were unable to respond to existing chats, start new ones or use the messaging app’s WhatsApp web service.
It appears the service went down at 16.28 GMT (11.28 ET) and resurfaced around 45 minutes later – only to crash again minutes later.
A live outage map for all the regions in which WhatsApp is available can be found at website downdetector.
This revealed the outage spread across Europe and the US.
The map users a colour scheme to indicate where the reports are originating.
The main problem appeared to be that the app couldn’t connect to the internet, even if the user had a working mobile or Wi-Fi connection.
When an existing chat was opened, the name of the person or group was replaced with a spinning wheel and the word ‘connecting.’
While attempting to use the WhatsApp Web service generated an error message that said: ‘WhatsApp Web requires a working internet connection, which you don’t have at the moment.’
Elsewhere, some users could receive new messages – albeit with a delay – but couldn’t reply.
The site initially resurfaced.
A spokesman told The News Dispatch: ‘Some people have had trouble accessing WhatsApp for a short period today.
‘We’re working to restore service back to 100% for everyone and we apologize for the inconvenience.’
The service was initially restored – but a soon crashed again.
‘Some people had trouble accessing WhatsApp for a short period earlier today.
‘We’ve restored service back to 100 per cent for everyone and we apologise for the inconvenience.’
However, it soon crashed again, showing users a ‘connecting’ message.
A leaked screenshot recently revealed the messaging app is testing a video call function to rival the likes of Apple‘s FaceTime and Microsoft’s Skype.
The blurry image shows a side-by-side shot of a video call being received and answered, with the phone’s camera recording what it can see.