Security forces and police say they have killed several suspected militants in incidents across Russia's volatile North Caucasus region.
Authorities said two armed men were killed in Daghestan's Khasavyurt district overnight after they opened fire on police.
The incident took place shortly after an unknown man shot and killed a cafe owner along the Makhachkala-Khasavyurt highway in Daghestan on December 29.
Police in the Neftekumsk district of Russia's Stavropol Krai meanwhile said they killed two men after they threw a homemade explosive device at police on December 30.
The same day, in Kabardino-Balkaria, security forces and police say they killed three suspected militants in a special operation in the city of Chegem.
Security has been stepped up in southern Russia and the capital following a pair of deadly bomb attacks in Volgograd
Based on reporting by ITAR-TASS, RIA Novosti, and Interfax