The United States has shot down another unidentified flying object in the fourth military operation in February 2023.
President Joe Biden ordered it to be downed near Lake Huron, close to the Canadian border, on Sunday afternoon.
The object could have interfered with commercial air traffic as it was traveling at 20,000ft (6,100m), Pentagon said in a statement on Sunday.
Pentagon added that the flying object was first detected above military sites in Montana on Saturday.
The object, which was not deemed a military threat, has been described by defence officials as an unmanned “octagonal structure” with strings attached to it.
It was downed by a missile fired from an F-16 fighter jet at 14:42 local time (19:42 GMT).
READ ALSO: U.S. shoots down Chinese spy balloon
The incident raises further questions about the spate of high-altitude objects that have been shot down over North America this month.
A suspected Chinese spy balloon was downed off the coast of South Carolina on 4 February after hovering for days over the continental US.
Officials said it originated in China and had been used to monitor sensitive sites.
China denied the object was used for spying and said it was a weather monitoring device that had been blown astray. The incident – and the angry exchanges in its aftermath – ratcheted up tensions between Washington and Beijing.
But on Sunday, a defence official said the US had communicated with Beijing about the first object after receiving no response for several days.
It was not immediately clear what was discussed.
Since that first incident, American fighter jets have shot down three further high-altitude objects in as many days.
President Biden ordered an object to be shot down over northern Alaska on Friday, and on Saturday a similar object was shot down over the Yukon in north-western Canada.
Officials have not publicly identified the origin or purpose of these objects.
Both the US and Canada are still working to recover the remnants, but the search in Alaska has been hampered by Arctic conditions.
“These objects did not closely resemble, and were much smaller than, the (4 February) balloon and we will not definitively characterise them until we can recover the debris,” a White House National Security spokesperson said.
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