[Tolsti2]

It exploded, Chernobyl-level right now.

[MindBender26]

The outer, weather shell of the building is gone. If the containment was of the domed design, it is gone, too. If if is of the mushroom-flattop design, it appears to be Ok, or at least it may be Ok from pictures.

The problem is they cannot produce power for cooling water pumps from generators at plant, or get it in from outside plant.

This can lead to a cascading series of problems where 3 to 5 reactors are lost.

At Chernobyl, 1,2 and 3 remained stable when 4 blew. They stayed on grid. That is not the case here.