Japan airport shut after likely WW2-era bomb explodes near runway, 87 flights cancelled ReutersSuspected WWII bomb grounds Japanese airport Al Jazeera EnglishRunway closed at Japan airport after dud shell explodes on taxiway Kyodo News PlusBomb dropped by U.S. in World War II explodes at airport in Japan, causing runway damage and cancellation of 80 flights CBS NewsA US bomb from World War II explodes at a Japanese airport, causing a large crater in a taxiway ABC News