The Israeli consulate in Athens is working to bring her body back to her family.
Local government said a short-circuit sparked the fire in the early morning hours of Saturday in the southern region of Arequipa.
Operator Russian Railways earlier said around 20 wagons had come off the track due to "unauthorised interference". Snezhetskaya is just to the southeast of Bryansk.
The workers stumbled on 1,700 archaeological remains including mummies, textiles and ceramics.
The bus driver attributed the accident to a mechanical issue in the bus, according to Army Radio.
The dead included five women and three children, police said, while five other people were hospitalized following the incident.
Dennis Zinobayev was killed and three of his comrades were injured when a grenade exploded in their room in January.
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