We are aware that some US East worlds are offline: 18, 22, 27, 39, 44, 48.
This has been caused by a hardware issue. Our team is currently hard at work to resolve this and bring the worlds back online.
Update June 10th 16:02
Worlds 22 & 39 are back up. We will be monitoring their performance before others are restored.
There is a chance server performance might be different than normal, so we advise caution with high risk activities.
Update June 11th 10:15
The remaining worlds, 18, 27, 44 & 48 are now back up and running.
As we said yesterday, remain cautious with high risk activities. We will update you when this is no longer necessary.
Update June 12th 10:58
You need no longer avoid high risk activities on these worlds, and they are performing as expected.
We apologise for any inconvenience caused.
The RuneScape team