US reveals more details on flying ‘objects’ as questions swirl

The United States government says the origin and purpose of three objects shot down over North American airspace since Friday is still unclear.
The White House says the objects were not crewed and did not appear to send communication signals.
The military has been on high alert ever since it shot down a Chinese balloon earlier this month.

Al Jazeera’s Shihab Rattansi reports from Washington, DC, the US.

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