<p>The detection near the plant, which is located about 250 km northeast of Tokyo, indicates a reactor meltdown is about to occur, officials at the Nuclear and Industrial Safety Agency said Saturday. <br /><br />According to an earlier report, the operator of the nuclear plant opened the valves of the containers housing the reactors to reduce pressure, a move that led to the release of a small amount of radioactive steam.<br /><br />A massive 8.9-magnitude earthquake followed by tsunami rocked the northeastern Japan Friday, killing about 1,000 people.</p>
<p>The detection near the plant, which is located about 250 km northeast of Tokyo, indicates a reactor meltdown is about to occur, officials at the Nuclear and Industrial Safety Agency said Saturday. <br /><br />According to an earlier report, the operator of the nuclear plant opened the valves of the containers housing the reactors to reduce pressure, a move that led to the release of a small amount of radioactive steam.<br /><br />A massive 8.9-magnitude earthquake followed by tsunami rocked the northeastern Japan Friday, killing about 1,000 people.</p>