In this image provided by the family, Sarai Sierra is shown in 

In this image provided by the family, Sarai Sierra is shown in an undated family photo, in New York. Sierra has reportedly gone missing during a trip to Turkey. She last contacted her family, Monday, Jan. 21, 2013, the day she was to fly from Istanbul to New York. (AP Photo/Family Photo)
Associated Press
In this image provided by the family, Sarai Sierra is shown in an undated family photo, in New York. Sierra has reportedly gone missing during a trip to Turkey. She last contacted her family, Monday, Jan. 21, 2013, the day she was to fly from Istanbul to New York. (AP Photo/Family Photo)
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