Gamers have slammed hackers who knocked out Playstation and Xbox networks on the  day millions received consoles for Christmas. The online networks which allow game players to get the most out of their new machines went down yesterday, leaving many youngsters frustrated and parents furious. Notorious hacking group Lizard Squad, who had previously brought down both networks earlier this month, claimed responsibility for the sustained distributed denial-of-service (DDoS) attacks. As the disruption dragged on into a second day today, many desperate gamers sent messages to the group on Twitter, urging them to return service to normal. Scroll down for video
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Gamers around the world were left disappointed on Christmas Day after Sony's PlayStation Network and Microsoft's Xbox Live service were hacked
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Notorious hacking group Lizard Squad had issued a threat at the start of December saying that planned to take the servers down
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Lizard Squad described itself as the 'next generation Grinch' and described by parents as 'modern day Scrooges'
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Individuals alleged to be in the collective 'include two UK residents'
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Gamers have been using Twitter to contact the group and demand they return the service to normal
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Both networks still reporting disruption, 24 hours after they went down
Microsoft and @placeholder both used Twitter to acknowledge the issues and to assure users that they were doing everything they could to restore their services.
It is unclear exactly who or what @placeholder are or what they are demanding.