NHKworld English here:
http://www3.nhk.or.jp/nhkworld/index.html

NHK is the official Japanese broadcaster. The latest story, dated March 15, 0:11 UTC, reports that TEPCO failed to raise water level in reactor Number 2, and fuel rods remain exposed.

Updated 07:48 UTC- Seawater was let into the reactor starting 1:00AM, but "as of 3:00AM, the water level remains low and the fuel rods remain exposed."
A TEPCO official (at 04:27 AM) said fuel rods may have overheated and begun melting.