Problems were first detected around 3:17 a.m. ET, according to Downdetector.com, which monitors outages across internet services.

Users reported problems with sending and receiving messages. Normal service on WhatsApp had still not been restored at around 4:05 a.m. ET.

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WhatsApp Web, the internet browser version of the messaging service, failed to load when tested by CNBC.

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“Make sure your computer has an active Internet connection,” a prompt on WhatsApp Web read.Meta later confirmed issues with WhatsApp.

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“We’re aware that some people are currently having trouble sending messages and we’re working to restore WhatsApp for everyone as quickly as possible,” a Meta spokesperson told CNBC.

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WhatsApp, which has around 2 billion users, is particularly popular in countries such as India and Brazil.

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Users across the world from the U.K. to India and Turkey reported outages on Tuesday.

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It’s not the first glitch for a Meta-owned platform this year. In August, Facebook users reported a problem where their Feed was spammed with messages from other people that were initially made on celebrity pages.

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