Chechen Interior Minister General Ruslan Alkhanov said Musa Mutiyev, known as "the emir of Grozny," was killed on September 8 in a special operation in Grozny.
The minister said Mutiyev was wanted by authorities for his involvement in a series of murders and other serious crimes.
The minister added that Mutiyev was close to Umarov and had also collaborated with slain militant Rustam Basayev.
(ITAR-TASS, Interfax, AFP)