Pokerstars, an online poker site used by millions across the globe, has stopped working, leaving many players stuck mid-game or unable to log in.
There's also been a spike of Pokerstars down reports on the independent outage monitor Down Detector, with reports rising since around 11pm GMT.
But that's only based on live complaints, and not the many more who likely have not complained online or through social channels like Twitter and Facebook.
The Down Detector outage map says the problems are mainly hitting users in small pockets across the globe including the UK, Europe and the United States.
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