Yelena Bonner, a human rights activist and the widow of the late Soviet dissident and Nobel Peace Prize laureate Andrei Sakharov, died in the U.S. at the age of 88, Ekho Moskvy radio station reported on Sunday.
Bonner died on Saturday in Boston after a grave illness, the radio station said, referring to human rights activist Pavel Litvinov and the Pyotr Grigorenko Fund.
Bonner's daughter Tatiana Yankelevich said that her mother would be buried in Moscow.
"We announce with deep sorrow that our mother Yelena Georgiyevna Bonner died today, on June 18 at 13:55 (17:55 GMT). According to her will, her body will be cremated and the cinerary urn will be buried at the Vostryakovo cemetery in Moscow next to her husband, mother and brother," Yankelevich said in a statement.
Sakharov was a Soviet nuclear physicist and an advocate of civil liberties and reforms in the Soviet Union. He was awarded the Nobel Peace Prize in 1975.