By Steve Neavling
The FBI and Homeland Security have warned that Russia is the chief suspect behind recent computer network breaches at U.S. nuclear power plants and other energy facilities.
Federal authorities said hackers have been targeting the computer networks of companies that operate the energy plants in what security specialists worry could be a search for vulnerabilities in the electrical grid, Bloomberg reports. 
Among the targets was the Wolf Creek nuclear facility in Kansas, which runs a nuclear power plant on a lake shore near Burlington, Kan.
A joint report from both intelligence agencies did not indicate whether the cyberattacks were intended to cause destruction or access industrial secrets.
But officials were worried enough to issue an urgent amber alert, the second-highest rating for a potential threat.
The possibility that Russia is involved has alarmed U.S. intelligence agencies because Russian hacker managed to disable parts of Ukraine’s electrical grid and are believed to be testing advance technology to disrupt power supplies.