WhatsApp users across the world complained of the messaging platform not working late on Tuesday, 22 January.
Many users took to Twitter saying they could not send messages and the application was not loading.
The problems were reported across the world and on both iOS and Android, The Independent said, citing the website Down Detector.
Later however, the messaging platform seemed to be back on track.
The Facebook-owned company is yet to issue a formal statement in this regard.
The global outage comes a day after the mobile messaging platform announced that it was restricting how many times any given message can be forwarded, in an effort to boost privacy and security.
"Starting today, all users on the latest versions of WhatsApp can now forward to only five chats at once, which will help keep WhatsApp focused on private messaging with close contacts," read a company statement on Monday.
Previously, users could forward any given message up to 20 times on the app.
(With inputs from AFP.)
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