[Resolved 10:40 AM PDT, 20 March 2014] Today’s unscheduled region maintenance has been completed.
[Posted 10:42 AM PDT, 20 March 2014] We are currently undergoing unscheduled region maintenance. Some regions may be restarted and take longer than normal to come back online. Please keep an eye on this blog for further updates.
Source: http://status.secondlifegrid.net