Ukraine to investigate suspected cyber attack on energy grid

A man types on a computer keyboard in Warsaw in this February 28, 2013 illustration file picture. REUTERS/Kacper Pempel/Files

KIEV (Reuters) - Ukraine will investigate a suspected cyber attack on its power grid, the energy ministry said on Thursday, an incident the country's secret service has blamed on Russia.

A power company in western Ukraine, Prykarpattyaoblenergo, said on Dec. 23 that a swath of the area it serves had been left without energy, including the regional capital Ivano-Frankivsk, due to "interference" in the work of the system.