It is believed that a 15-year-old schoolgirl was sitting on top of the bomb which blew up the Russian Metrojet plane, killing all 224 people onboard in the Sinai desert.
Maria Ivleva, from the St Petersburg region, is thought to have been sitting near the bomb which exploded with the same power as one kilogram of TNT.
A report carried out into the Russian plane crash suggests that investigators have narrowed down where the bomb was put to under the seat of either 30A or 31A in the A321 between Sharm El-Sheikh and St Petersburg.
Piecing together the report, and the names of victims on the doomed plane, the bomb is believed to have been beneath the seats of either 15-year-old Maria Ivleva, or 77-year-old Nadezhda Bashakova.
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