Technicians will start pumping more in as early as Wednesday evening, said Junichi Matsumoto, a spokesman for the plant operator.
Japan stops highly radioactive leak into Pacific →
"We are not opting for entombment at the moment," said spokesman Junichi Matsumoto. "We see that Units 1-4 reactors are relatively stabilized, judging from the reactor temperature and water level, while we are short of calling them stable."
Japan's prime minsiter visits tsunami-hit fishing city →