Japan’s nuclear safety agency reported an emergency at a second reactor Sunday in the same complex where an explosion occurred Saturday, according to the Associated Press.
Officials at the Nuclear and Industrial Safety Agency told the Associated Press early Sunday that the cooling system had malfunctioned at Unit 3 of the Fukushima Daiichi nuclear plant. Officials said they were informed of the emergency by Tokyo Electric, the utility which runs the plant, according to the Associated Press.
No further details of the troubles at Unit 3 were immediately available.
On Saturday, an explosion had occurred at another reactor in the same nuclear plant complex, destroying the building housing the reactor. Officials were still investigating the fallout from that explosion and potential radioactive exposures Sunday.