None of the three most recent objects have been recovered, Defence Secretary Lloyd Austin told reporters in Brussels, where he was scheduled to attend a NATO defence ministers meeting this week. The U.S. Air Force general overseeing North American airspace said a recovery effort will be undertaken to gain more information about an octagonal object shot down over Lake Huron. Gen. Glen VanHerck, head of North American Aerospace Defence Command (NORAD) and Northern Command, said the object likely fell into Canadian waters. However, Canadian Defence Minister Anita Anand said Canada didn't have any evidence to suggest the debris drifted into Canadian water.