U.S.: Three Mile Island radiation not significant

About 150 employees were sent home Saturday afternoon

Video: Life

When the Saints go marching in
In the middle of Mardi Gras revelry, the Saints Super Bowl parade on Tuesday took center stage. NBC's Janet Shamlian reports.

Kent Jones in post-Super Bowl New Orleans

Betty White wins MVP of Super Bowl spots

City of Saints basks in Super Bowl glory

Artist, activist, mentor: The many faces of Will.i.am

NBC Field Notes

NBC News correspondents and producers across the U.S. shed light on the news of the day.

Photo features

Reuters	The Week in Pictures Snow and ice abound, Haiti goes on, State of the Union view, Machu Picchu flooding, a firefighter’s reprieve in Nigeria and more news and feature images from around the world.
Getty Images	PhotoBlog View and discuss the pictures and issues that caught our eyes.

updated 10:07 p.m. ET Nov. 22, 2009

MIDDLETOWN, Pa. - The U.S. Nuclear Regulatory Commission said the small amount of radiation detected at the Three Mile Island nuclear power plant is not significant.

Specialist John White told ABC News that there was no indication that radiation at the plant exceeded or even approached regulatory limits.

The commission sent investigators to the central Pennsylvania plant after a small amount of radiation was detected.

Story continues below ↓

advertisement | your ad here

About 150 employees were sent home Saturday afternoon, but officials said there was no public health risk.

Exelon Nuclear spokeswoman Beth Archer said the radiation was quickly contained.

The unit has been shut for refueling and maintenance since Oct. 26. Workers are being tested for radiation exposure.

A partial meltdown occurred in Three Mile Island's Unit 2 reactor in 1979.