Russian citizens Ephraim and Golda Nachumov and their two small children, Eliyahu and Chava, were killed early Sunday in a passenger jet crash in the Ural mountains, the Chabad movement reported.
The Foreign Ministry has yet to receive any information on the presence of Israeli citizens on the flight.
Russian news agencies reported that Flight 821 operated by an Aeroflot subsidiary carried 82 passengers and six crew members, who were all killed in the crash. The plan was traveling from Moscow to the Ural Mountains city of Perm and crashed near residential buildings as it was preparing to land.
The Nachumov family members were part of Perm's Jewish community. They moved to the city from Azerbaijan several years ago. The four were making their way back home after visiting relatives in Azerbaijan.
"The Nachumov family was a member of our congregation," Rabbi Zalman Deutch, the chief rabbi of Perm, told Ynet. "Only several months ago I visited their home along with my wife, and their son Eliyahu was slated to begin the first grade at the Jewish school. This is a great tragedy and we are all in shock."
A delegation on behalf of the Federation of Jewish Communities of the CIS, headed by Russia's Chief Rabbi Berl Lazar and Chevra Kadisha representatives, left Moscow on Sunday morning towards Perm along with the family's relatives in order to handle the burial arrangements of the four family members.
The Associated Press contributed to this report