(RIA Novosti) - Two militants have been killed and one detained in a clash in the capital of Chechnya, Grozny, the prosecutor of the Russian North Caucasus republic said Thursday. "The prosecutor's office has launched a criminal case into the facts of the clash," Valery Kuznetsov said, adding that two policemen were wounded. He said information was received that a group of militants had barricaded themselves inside a multistory building. A Chechen Interior Ministry source said one of the dead militants was a local ringleader. An investigation is underway.