As reported by the Herald:
http://www.nzherald.co.nz/world/news/article.cfm?c_id=2&objectid=11641360
It "faded" off radar. Not a good sign. Navy are on the way and search and other search and rescue operations are in place. It was only 10 minutes away from its destination.
I'm not jumping to conclusions this time. But I hope this aircraft is found relatively quickly. Apparently the airspace is low volume, however the traffic on the water is high.