OTTAWA, Ontario >> Canadian Prime Minister Justin Trudeau said Saturday that on his order a U.S. fighter jet shot down an “unidentified object” that was flying high over the Yukon, acting a day after the U.S. took similar action over Alaska.

North American Aerospace Defense Command, the combined U.S.-Canada organization that provides shared defense of airspace over the two nations, detected the object flying at a high altitude Friday evening over Alaska, U.S. officials said. It crossed into Canadian airspace on Saturday.

Trudeau spoke with President Joe Biden, who also ordered the object to be shot down. Canadian and U.S. jets operating as part of NORAD were scrambled and it was a U.S. jet that shot down the object.

F-22 fighter jets have now taken out three objects in the airspace above the U.S. and Canada over seven days, a stunning development that is raising questions on just what, exactly, is hovering overhead and who has sent them. At least one of the objects downed was believed to be a spy balloon from China, but the other two had not yet been publicly identified. While Trudeau described the object Saturday as “unidentified,” a NORAD spokesman, Maj. Olivier Gallant, said the military had determined what it was but would not reveal details.

Trudeau said Canadian forces would recover the wreckage for study. The Yukon is westernmost Canadian territory, a least populated part of Canada.

Just about a day earlier, White House National Security Council spokesman John Kirby said an object roughly the size of a small car was shot out of the skies above remote Alaska. Officials couldn’t say if it contained any surveillance equipment, where it came from or what purpose it had.

Kirby said it was shot down because it was flying at about 40,000 feet and posed a “reasonable threat” to the safety of civilian flights.