UPDATE: All services are now back up and running.
Users are reporting that Sony’s PlayStation Network is down and experiencing issues.
Sony have only said that the network was “experiencing issues”.
According to the official Sony status page problems are affecting all of its major services.
From Sony’s PSN status page:
Gaming And Social
Affected Platforms:PS3™ , PS4™ , PS Vita , Web , Other
Affected Services:You may have some difficulty launching games, applications or online features. Our engineers are working to resolve the issue as soon as possible, and we thank you for your patience.