The horrific case of a young woman found raped, strangled and burned in a forest in Germany is one of dozens that form part of a campaign aimed at solving cold cases from six European countries.

The launch of the Operation Identify Me campaign last year marked the first time that Interpol had ever gone public with a list known as “black notices”, seeking information about unidentified bodies. Such notices had historically only been circulated internally among Interpol's network of police forces.

Police across European are reopening investigations into 46 women who were murdered or died under suspicious circumstances in an effort to identify their remains, the Interpol said on Tuesday. “We want to ... bring answers to families and deliver justice to the victims,” Interpol Secretary General Jürgen Stock said in a statement.

Global police body Interpol on Tuesday launched a new campaign to identify 46 women whose remains have been found across Europe in unsolved cases, some dating back decades. The campaign has seen Interpol for the first time share previously confidential information -- so called Black Notices -- about unsolved cases.

Police in six European countries and Interpol are reopening investigations into 46 women who were murdered or died under suspicious circumstances in an effort to identify their remains.

Rita Roberts' disappearance in the 1990s remained a mystery until Interpol's Identify Me initiative helped identify her body via a tattoo. Now, the agency is asking for the public's help with dozens more cases.