A suicide bombing in Ingushetia killed at least seven people and wounded 11 who were attending the funeral of a police officer who was killed in another attack the same day, the state news agency Ria Novosti reported.
Also Saturday, at least six people were wounded when two masked men opened fire inside a mosque in Russia's North Caucasus region, Russian officials said.
Russia blames the attacks on militants who want to establish an Islamic state in the Caucasus region.
The mosque attackers fled the scene, according to the Investigative Committee of the Russian Federation.
The shooting happened inside a Shiite mosque in the city of Khasavyurt, a predominantly Sunni region, Ria Novosti reported.
The bombing targeted a house in rural Sagopshi that was hosting the funeral for Ilez Korigov Malgobek, who was killed in a shootout Saturday with militants, the news agency quoted investigators as saying.
In May, at least eight people were killed and 20 wounded in a suicide car bombing in the capital of Russia's North Caucasus republic of Dagestan. The twin explosions killed five police officers, two rescuers and a civilian.