Smoke spewed Monday from two adjacent reactors in the Fukushima Daiichi nuclear power plant, a nuclear safety official said, setbacks that came despite fervent efforts to prevent the further release of radioactive materials at the stricken facility.After 6 p.m., white smoke was seen emanating from the facility's No. 2 reactor, according to Hidehiko Nishiyama, an official with Japan's Nuclear and Industrial Safety Agency. About two hours earlier, workers were evacuated from the area around the No. 3 reactor after gray smoke began to rise from the wreckage of its steel-and-concrete housing, which was blown apart by a hydrogen explosion last week. The No. 3 reactor has been the top priority for authorities trying to contain damage to the plant and stave off a possible meltdown. Its fuel includes a small percentage of plutonium mixed with the uranium in its fuel rods, which experts say could cause more harm than regular uranium fuels in the event of a meltdown. Nishiyama said there was no evident explosion, spike in radiation or injuries at the No. 3 reactor. The smoke was coming from the building's southeastern side, where the reactor's spent nuclear fuel pool is located, but the origin of the smoke at either reactor was unknown.Japan nuclear plant
