Militants kill seven policemen in southern Russia

At least seven Russian police officers were killed and several others wounded in a clash with militants in a restive Caucasus province, a Russian Interior Ministry official said on Tuesday. The militants killed a police officer in the Caspian Sea province of Dagestan Tuesday and then ambushed a police convoy in the area, killing another six. Dagestan located east of Chechnya and other provinces in Russia's volatile North Caucasus have been troubled by violence linked to Chechnya-based rebels, an official crackdown on Islamic militancy, clan rivalries and internal power struggles.