Japan Atomic: may shut nuke reactor due to problem, no leak
The company said it had identified a possible leak of iodine from the 1,160-megawatt No.2 reactor's nuclear fuel assemblies into its coolant.
Japan's Fukushima Daiichi nuclear reactor complex, run by Tokyo Electric Power Co, was hit by the quake and tsunami, touching off the world's worst nuclear crisis since Chernobyl in 1986 as radiation from damaged reactors spewed into the surroundings.
(Reporting by Osamu Tsukimori; Editing by Joseph Radford)