Another unidentified object has been shot down over North American airspace, Canadian Prime Minister Justin Trudeau has confirmed.
He said the latest object "violated Canadian airspace" and was shot down over Yukon in north west Canada.
Both Canadian and US aircraft were scrambled to track down the object which Mr Trudeau says was taken out by a US F-22.
Mr Trudeau says he gave the order and he spoke with US President Joe Biden.
"Canadian forces will now recover and analyse the wreckage of the object," he wrote on Twitter.
He thanked the North American Aerospace Defense Command (NORAD) which earlier said it had been monitoring "a high-altitude airborne object" over northern Canada. NORAD carries out air defence for the US and Canada.
The White House said the object has been tracked and monitored "over the last 24 hours".
"Out of an abundance of caution and at the recommendation of their militaries, President Biden and Prime Minister Trudeau authorised it to be taken down," it said.
"The leaders discussed the importance of recovering the object in order to determine more details on its purpose or origin."
Giving more details on the mission to take down the object, the US Department of Defense confirmed two F-22 jets took off from Joint Base Elmendorf-Richardson in Anchorage, Alaska and the object was shot down with an AIM 9X missile.
Pentagon Press Secretary Brig Gen Pat Ryder said although Canadian authorities will conduct recovery operations, the FBI will be "working closely" with Canadian police.
It is not clear what the object is.
But, its appearance over North America comes just a week after a suspected Chinese spy balloon was .
On Friday another object was shot down over Alaska at the orders of US President Biden.
In a short statement, the military said US troops, including from the Alaska National Guard, were still conducting search and recovery activities on sea ice for Friday's object.
It said it had no further details about the object's capabilities, purpose or origin but confirmed the FBI is helping with the recovery near the Alaskan town of Deadhorse.
"Arctic weather conditions, including wind chill, snow, and limited daylight, are a factor in this operation, and personnel will adjust recovery operations to maintain safety," it added - and that the rescue operation will continue as weather permits.
The latest incident comes a week after the American military destroyed a Chinese balloon off the coast of South Carolina.
China has denied the balloon - which first entered US airspace on 28 January - was used for spying purposes, saying it was a weather device gone astray.
The US, however, said the balloon is part of a fleet of surveillance balloons that have flown over five continents.
The balloon incident has strained US-China relations, with Secretary of State Antony Blinken cancelling a planned trip to Beijing.Chinese officials on Friday accused the US of "political manipulation and hype".