The NRC said the high-tech war games, which use blank rounds and lasers to simulate gun battles, were postponed at the Indian Point nuclear power plant in Buchanan after a security officer at New Hampshire's Seabrook nuclear power complained of light-headedness resulting from the mock assault, The Journal News, White Plains, N.Y., reported Monday.
"The issue is that carbon monoxide is emitted from the firing of multiple rounds in a security enclosure, where ventilation is limited," NRC spokesman Neil Sheehan said. "This is the first force-on-force exercise that has been postponed due to this issue."
The equipment manufacturer, Florida-based Saab Training USA, said it is working to resolve the issue.
2014: The Year in Music [PHOTOS]