“Tepco admits two more meltdowns” via The Japan Times Online

Tokyo Electric Power Co. admitted Tuesday what many experts had long suspected: The cores of reactors 2 and 3 at the Fukushima No. 1 nuclear plant likely melted down and dropped to the bottom of their pressure vessels, just as happened at unit 1.

However, temperature readings taken in the two units, now ranging from about 100 to 110 degrees, suggest that most of the melted cores remain inside the pressure vessels and have been cooled by injected water.

Tepco admits two more meltdowns