Overnight there was an explosion at one unit of one of the two Fukushima nuclear stations that have been slowly failing since the earthquake and tsunami. Earlier reports had said that in one unit, the still hot fuel rods had been exposed by falling cooling water while problems continued at Unit 2 and three other units at a nuclear station about 15 km away. There have also been reports of releases of cesium with seriously high radioactivity being reported in the vicinity.

After a devastating 8.9 earthquake, damage to the Fukushima Nuclear Power Plant led to some sort of explosion.