CLINTON - The elevated terrorist alert put in place by international events Thursday did not involve nuclear plants, but officials at the Clinton Power Station put additional security measures in place as a precaution.

Bruce Paulsen, spokesman for AmerGen, owners of the Clinton nuclear plant, did not disclose specific details of the measures, citing security concerns.

"We have been in contact with federal, state and local authorities. We've made sure everyone is aware of the situation and reviewed their procedures," Paulsen said.

Among the federal agencies working with nuclear power plant operators was the Nuclear Regulatory Commission.

"There are no specific credible threats regarding nuclear plants. We have notified all plants to make sure they are aware of the threat level, and we are in close contact with the Department of Homeland Security," said Jan Strasma, NRC Region III public affairs officer in Chicago.

Fred Zacher, DeWitt County Emergency Services and Disaster Agency coordinator, said he learned of the elevated terror threat when his pager went off this morning. State emergency management officials notified Zacher of the alert. The county emergency office did not have contact with power plant officials, Zacher said.

Illinois has 11 nuclear reactors in six cities.

Edith Brady-Lunny can be reached at eblunny@mchsi.com.