WhatsApp has crashed among users across the UK, with tens of thousands reporting being unable to send or receive messages.
Downdetector, which tracks outages, said more than 57,600 issue reports were filed at 8:41am, with the issue first detected before 8am.
However, because of the way the site collects data, the number of users experiencing issues can be much higher.
WhatsApp users from all over the world have complained through social media platforms such as Twitter that the app doesn’t work.
Downdetector also found over 11,000 users in India and 19,000 users in Singapore reporting problems.
Users found that while they could open the app and access their conversations, it was unable to deliver new messages or send any messages successfully.
Many users displayed a persistent message at the top of the app saying it was “connecting” to the server, but then couldn’t seem to connect.
A spokesman for the platform’s parent company Meta said: “We know that some people are currently unable to send messages and we are working hard to restore WhatsApp for everyone as soon as possible.”
WhatsApp is one of the most popular messaging platforms in the UK and globally, with an estimated over 2 billion active users worldwide.