While Russia is accusing the Ukraine of blowing up its own dam, the Ukraine and other Western countries believe that Russia is responsible for Kakhovka dam's destruction.
Trudeau's comments came after US Senate Majority Leader told broadcasters that the objects destroyed over Canada and the US were both balloons.
The Pentagon on Friday offered only a few details, including that the object was the size of a small car and that it was flying at about 40,000 feet.