Police in Sochi have launched an urgent search for a possible female suicide bomber who may have already made it past the ring of security set up for the Olympic Games.

Hotel employees in Sochi told ABC News that posters with pictures and descriptions of a 22-year-old woman from nearby Dagestan were distributed over the weekend by authorities and a similar flyer was also seen posted at Sochi’s airport.

The woman is identified as Ruzanna Ibragimova, using the nickname Salima, the widow of a militant reportedly killed in a shoot-out with police last year in Dagestan.

She is described as being affiliated with the Caucasus Emirate, the terror group led by Doku Umarov that has threatened attacks against the Winter Games in Sochi.