This is the latest bulletin:
1:55 p.m. PDT – Starting at approximately 2:15 p.m. PDT, we will be bringing Diablo III servers in the Americas offline for urgent maintenance to address several issues that are impacting the game. We anticipate that maintenance will last for about an hour and that servers will be available at approximately 3:30 p.m. PDT. We will provide further updates as they are necessary. Thank you for your patience.