Discussion website Reddit is reported to be down for a number of users with errors messages, blank pages and pop-ups appearing instead of content.
The team behind the news aggregation and content ranking site say they are aware of the issue and are looking into it.
Many users are reporting seeing a message which reads: "Sorry, for some reason reddit can't be reached".
There are also pop-ups reading: "Sorry, we couldn't load posts for this page".
Thee problems started at around 1.15pm GMT and thousands of people are tweeting their frustration.
