The US military said it shot down a high-altitude object over Lake Huron on Sunday, in the fourth operation of its kind this month over the skies of North America. The mission by US fighter jets off the shores of Michigan and close to the Canadian border came after they separately shot down unidentified aerial objects over Yukon, the northwestern Canadian territory, on Saturday, and Alaska on Friday.
美国军方表示，上周日在休伦湖(Lake Huron)上空击落了一个高空物体，这是本月在北美上空进行的第四次此类行动。美国战斗机在密歇根州的湖岸和加拿大边境附近执行了此次任务，此前，其分别于上周六在加拿大西北部育空(Yukon)地区、上周五在美国阿拉斯加上空击落不明飞行物。
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