The Interior Ministry in Russia's North Caucasus region of Daghestan says three suspected militants have been killed in the city of Makhachkala.
Officials say policemen came under fire on October 8 as they attempted to stop a car containing the suspects.
The policemen reportedly returned the fire, killing the three attackers.
Two of the policemen were hospitalized with gunshot wounds.
Also on October 8, a missing police officer was found killed near the Daghestani city of Buinaksk.
Last week, security forces and police killed seven alleged militants in the same area.
Violence between suspected Islamic militants and security forces in Russia's North Caucasus region leaves dozens of people dead and injured each year.
Based on reporting by Interfax, RIA-Novosti, ITAR-TASS