Photo taken on Aug. 18, 2017 shows the site of explosion in Vietnam's central Khanh Hoa province. A big artillery shell exploded in Vietnam's central Khanh Hoa province on Friday, killing two adults and four children. (Xinhua/VNA)
Photo taken on Aug. 18, 2017 shows the site of explosion in Vietnam's central Khanh Hoa province. A big artillery shell exploded in Vietnam's central Khanh Hoa province on Friday, killing two adults and four children. (Xinhua/VNA)