The US has shot down another unidentified flying object over its territory in what is the fourth such incident this month.
President Joe Biden ordered it to be shot down as it neared Lake Huron, close to the Canadian border.
Washington has been on high alert since its military destroyed a suspected Chinese spy balloon on 4 February.
That balloon was tracked across the continental US before it was shot down off the coast of South Carolina.
Officials recovered some of its debris from the ocean and said the balloon originated in China and had been used for surveillance.
China denied it was used for spying and said it was a weather monitoring device that had been blown astray.
Since that initial incident, American fighter jets have shot down three further high-altitude objects in as many days.
On Friday, President Biden ordered an object to be shot down over Alaska. And on Saturday a similar object was shot down over the Yukon in north-western Canada.
Officials have not publicly identified the suspected origin 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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