The victims, who hailed from the small village of Krasny Velikan (Red Giant) in Siberia, died presumably after drinking ethyl alcohol over the weekend, said Irina Beloshitskaya, a spokeswoman for the regional health ministry.
Eleven were hospitalised in the nearby town of Krasnokamensk and three of them were in a grave condition.
"They are now receiving hemodialysis," Beloshitskaya told AFP, referring to a treatment for kidney failure.
Governor of the Zabaikalsky region Konstantin Ilkovsky flew into the village along with doctors, investigators and representatives of the emergencies ministry.
Alcohol abuse is widespread in Russia. Some resort to drinking everything from adulterated liquor to anti-freeze.