Police shot dead two men Sunday suspected of involvement in a deadly attack on a hydroelectric plant in the volatile Russian North Caucasus region last week, the local interior ministry said. Police shot dead the men at around 4:00 pm (1200 GMT) in a village in the southern Russian republic of Kabardino-Balkaria, west of Chechnya, the ministry said, quoted by Russian news agencies. They were identified only by their surnames: Orchokdougov and Seiounov. Officers found firearms in their car and a large amount of ammunition and grenades. The men, who were targetted in a special police operation, were part of a group wanted by police for a series of crimes, including the July 21 attack at a hydroelectric plant in Kabardino-Balkaria, said the ministry statement. Militants stormed the plant, killing two guards and setting the facility ablaze with a string of blasts. Russian authorities are battling a Muslim insurgency in the Caucasus, where Moscow fought two bloody wars against Chechen separatists in the 1990s and militants have long pledged to destroy key infrastructure sites. 