Facebook Messenger is all over the world when users report problems with the app and the website.
Down detector, a site that monitors online disruptions, shows that problems are around 10.30 am eta on meta-ownership.
The failure has hit the US and the UK, parts of Europe, Australia, South America and Asia, together with other countries around the world.
From 2025, around a billion people use Facebook Messenger, which is around 12 percent of the world's population.

Facebook Messenger is all over the world when users report problems with the app and the website
Facebook has not recognized the malfunction on its social media sites and it is unclear what it has caused.
Meta also owns WhatsApp that was also struck with a worldwide malfunction on Friday.
More than 8,200 Americans reported problems to Down detector.
Although the reassurance for the last failure remains unclear, it comes four years after Meta has experienced a seven-hour blackout that the company cost an estimated $ 100 million in lost income.
The global malfunction-Die Facebook, Instagram, WhatsApp and Messenger Haken-Werd caused a defective update when his servers from the Internet broke off, which means that engineers had to travel to his Santa Clara data center to repair the malfunction.
But the repair was delayed, according to an insider who posted on Reddit, because of 'lower staff in data centers due to pandemic measures'.
The Glitch, who called for a collapse of large technology companies, also brought down messaging services that worked remotely to communicate.
So those who knew how to repair the servers could not get that information to the teams within the data center, the Insider said.
Handicapped were also key-phob entry systems on Facebook's main campus in Menlo, which means that those who had been WFH, but hurried back to the office could not come in, while they were already unable to gain access to conference rooms and other areas that require a pass.