'Unidentified object' shot down over Canada: Trudeau

Canadian Prime Minister Justin Trudeau said Saturday an "unidentified object" was shot down over northwestern Canada, one day after US officials said they had shot down an object over Alaska.

"Canadian and US aircraft were scrambled, and a US F-22 successfully fired at the object," Trudeau tweeted.

The operation came one week after US forces downed an alleged Chinese spy balloon that had sparked a fresh diplomatic rift with Beijing.