The same hacker collective that launched a distributed denial-of-service (DDoS) attack on the Xbox Live service took down another gaming network it had previously targeted.

The infamous Lizard Squad group took credit for the PlayStation Network outage on Sunday, which left gamers unable to access the online store. Users were greeted with a message that read, “Page Not Found! It's not you. It's the Internet's fault.”

While the message did not indicate any specific issues, the company reached out to users via Twitter to notify them that it was “working to address” the problems that users were experiencing.

The service is currently back online. Just last week following the attack on Xbox Live, the group alerted its Twitter followers that future attacks were imminent, stating that the Xbox Live incident was “a small dose of what's the come on Christmas.”