The picture above was taken from a drone aircraft within the past day or two. Damage to the lightweight outer lagging is evident. This was the result of the hydrogen explosions we saw from a long distance on TV. Extent of damage to the much heavier containment building (shell) or even the reactor vessel is not obvious in these pictures.
The picture above shows all 4 of the reactor buildings and to the right, the turbine buildings. Below is the No. 2 executive of Tokyo Electric Power Co. The stress is evident in his expression and those of his assistants.