![New evidence reveals Japanese wartime immigration to NE China(4/8)](http://www.ecns.cn/hd/2015/08/13/3cbbeb946d7f42dc8887bcad46c2090e.jpg)
An archives staff member arranges files recording Japan's immigration campaigns at the provincial archives in northeast China's Heilongjiang Province, Aug. 12, 2015. The Heilongjiang Provincial Archives on Tuesday published archival files related to Japanese wartime immigration to northeast China, comfort women and live victims used for bacteriological experiments. (Photo: Xinhua/Wang Song)