[UPDATE] PlayStation Network fault prevents offline play

PlayStation 3 users have reported a fault that is preventing access to the PlayStation Network, and even preventing users from playing games offline in some cases.

While Sony is currently working to fix the connection problem to the PSN, games with dynamic trophy support (such as the recently released Heavy Rain) are currently unplayable even for an offline session. An error message appears after attempting to boot such games, which then returns the user to the main menu screen.

The problem is reportedly affecting PlayStation 3 users the world over. Stay tuned for any developments.

UPDATE - 4.46pm: Sony has just posted the following on its official Twitter account:

"PSN status update: We're narrowing down the issue and continue to work to restore service to all. Updates as soon as we have them."

This was soon followed by:

"PSN status update (part 2): Readers/followers are confirming that "slim" units (120/250 GB models) are connecting normally."