Thanit Sheetz-Marti was 3 years old when she was last seen on January 3, 2010, in Lynn, Massachusetts. Reports say she and her younger sister Athena were taken by their mother, Mireia Marti, and are believed to have been abducted.

Authorities suspected Marti fled with the children to avoid a contentious custody battle with the children’s father, Jonathan Sheetz, and the girls may have been taken to Spain, where Marti has family ties and a last known residence. Both children remain listed as missing and efforts to locate them have involved international legal steps under the Hague Convention.

Law enforcement agencies, including the National Center for Missing & Exploited Children, continue to seek information that could reunite the girls with their father in Massachusetts. If anyone has information about Thanit or Athena’s whereabouts or saw them after January 3, 2010, please come forward.