WhatsApp suffered a global outage on New Year’s Day 2018 for about an hour before the problem was fixed.
A spokesperson of the messaging platform confirmed the development, but said experts at the social media firm immediately had no idea what happened.
“WhatsApp users around the world experienced a brief outage today that has now been resolved,” a WhatsApp spokeswoman said in an emailed statement.
“The cause of the outage, about an hour long, was not immediately known,” the statement added.
In Nigeria, one of WhatsApp’s biggest markets, the app was down just a few minutes past midnight into the New Year.
Users in other countries also complained of outages on social media.
While the firm did not expressly state the cause of the downtime, it might not be unconnected to the volume of data peddled on the platform between the night of December 31st 2017 and January 1st 2018.