Russian security officials have launched search operations for three potential female suicide bombers, one of whom is believed to be in Sochi, ahead of next month's Winter Olympics.
Police leaflets are pasted at a central Sochi hotel warning about the three potential suicide bombers.
A police letter said that one of them, Ruzanna Ibragimova, a 22-year-old widow of an Islamic militant, was at large in Sochi.
According to news24, Russian authorities have blamed the so-called 'black widows' of slain insurgents for previous suicide attacks in the country.
Police material distributed to the hotel staff also included pictures of two other women in veils: 26-year-old Zaira Aliyeva and 34-year-old Dzhannet Tsakhayeva, the report added.
It said they had been trained 'to perpetrate acts of terrorism' and warned that the two women are 'probably among us'.
