UPDATE: FNN News says there are about 3,400 containers of depleted uranium at the plant, but according to Mitsui Chemical there is no damage to the containers.
NHK has a fixed camera nearby (5 kilometers from the plant). The second explosion took place at 8AM on April 22. (My original post on the accident is here.)
You can go to NHK to view the video clip.
So far, 1 worker is dead, 11 workers including workers at the adjacent plant injured, with two severely injured. 5 residents living nearby were injured by broken glass.
8AM explosion captured by the NHK camera:
Firefighting continues at the plant, (which looks more like Fukushima I Nuke Plant...):
No definite word yet on the depleted uranium that was stored at the plant, or on the low-level radioactive waste.