The updated death toll from the suicide bombing at Volgograd train station has been set at 14, officials from the Investigative Committee announced.
Another 34 have been injured and rushed into hospital.
The bomber apparently set off her bomb when she saw a police officer approaching her at the railway checkpoint.
It is the second bombing in the southern Russian city in two months and comes less than six weeks ahead of the Winter Olympics in Sochi, which is located less than 1,000 kilometers (620 miles) from Volgograd.
No one has claimed responsibility for the attack.
In October, a bomber blew up a passenger bus, killing six people and wounding more than 30 others. Russian media reported that a female Islamist suicide bomber from the Russian region of Dagestan was responsible for the attack.
The restive region of Chechnya is also located in this southern portion of Russia.