Fuel rods at the reactor may be melting after radioactive Cesium material left by atomic fission was detected near the site, Nuclear and Industrial Safety Agency spokesman Yuji Kakizaki said by phone earlier today.

http://www.bloomberg.com/news/2011-03-12/explosion-destroys-walls-of-japan-reactor-building-nhk-reports.html

I read a report that said the temp in the control room was 100C but I can't find it now.