The shooter was shot dead.
They include two members of local security services and two civilians, also women, the Interfax news agency said.
The church's abbot told the RBC news agency that the attack took place at about 4pm as the service concluded and the congregation began to fan... Maslenitsa is a Christian festival marking the last days before the season of Lent.
"The Primate of the Russian Orthodox Church considers this awful crime, committed on the eve of the Great Lent, a provocation aimed at instigating confrontation between [the] Orthodox and Muslims, who have been coexisting peacefully for ages in the Caucasus", his spokesman said, RT reported.
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I think the effort on the defensive end will pick up and we won't see a game like last year's sloppy 192-182 finish. The coaches decided to choose Andre Drummond, Paul George, Goran Dragic and Kemba Walker as the four replacements.
She said: "There were a lot of people there, mums with little children, elderly people".
"We had finished the mass and were beginning to leave the church", Father Pavel was quoted as saying. The Daesh terror group reportedly claimed responsibility for the attack.
Dagestan, located in Russia's North Caucasus, is an ethnically diverse and largely Muslim federal republic.
It has been the scene of an Islamist insurgency following separatist wars in neighbouring Chechnya.