This morning, users across the UK were unable to use WhatsApp, with thousands reporting being unable to send or receive messages.
Downdetector, which tracks outages, said more than 69,100 issue reports had been filed at 8:28 a.m., with the problem first detected before 8 a.m.
However, because of the way the site collects data, the number of users experiencing issues can be much higher.
By around 9.30am, that number had dropped to 29,917 – just before 10am, users noticed that the service was back up and running.
WhatsApp Users from all over the world have complained on social media platforms such as Twitter that the app doesn’t work.
The hashtag #whatsappdown is trending on Twitter, with over 70,000 tweets and hundreds of memes flooding the internet.
Downdetector also found more than 11,000 users in India and 19,000 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 failed to do so.
A spokesperson for Meta, the platform’s parent company, 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.”
Some of the highest profile users may be Tory MPs, and the platform is widely used by backbenchers, cabinet ministers and aides to discuss public information.
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One Cabinet reshuffle will take place Today, so many MPs looking to secure ministerial positions may not have an important way to probe the chances of an adviser being appointed during a service shutdown.
This application has been previously identified as MP’s preferred tool Conspiring against their leaders, Boris Johnson is said to have regularly received summaries of key government information through the platform during his tenure as prime minister.
WhatsApp is one of the most popular messaging platforms in the UK and globally, with an estimated over 2 billion active users worldwide.