Published: Oct 21, 2013 11:42 AM EDT

ATHENS, Greece (AP) - Police in Greece have released photographs of a couple charged with abducting a girl known "Maria" and taken them into pre-trial custody.
    
An international search for the young girl's parents has intensified.
    
A 39-year-old man and a 40-year-old woman, identified as Christos Salis and Eleftheria Dimopoulou, were detained Monday on charges of abduction and document fraud following their arrest last week. Police raided a Roma encampment near the central Greek town of Farsala and found the girl, who a DNA test has shown is not the couple's child.
    
The case has triggered a global outpouring of sympathy and possible tips to police about the case but no breakthrough yet in identifying the child.

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