AlQa'dah 2, 1436, Aug 17, 2015, SPA -- Armed men kidnapped a foreign aid worker, believed to be German, in downtown Kabul on Monday, according to Reuters. It was not clear if militants or a criminal group were behind the kidnap, as there was no immediate claim of responsibility for the second abduction of a foreigner in recent months in Kabul. "Right now an investigation is ongoing," said interior ministry spokesman Najib Danish, confirming the kidnapping. Security sources said the victim worked for German development agency GIZ, which was the target of another kidnapping in north Afghanistan earlier this year.