A Montana congressman said on Saturday night that he had been told an unidentified object was spotted over his district, forcing the temporary closure of airspace - and the search for it would resume at daylight. 'With questions about the Chinese spy balloon still unanswered, the Biden administration must be fully forthcoming with Montanans and all Americans.' Canada's defense minister said it was a 'a small cylindrical object' that was not as big as the South Carolina spy balloon. 'I ordered the take down of an unidentified object that violated Canadian airspace,' he tweeted on Saturday. A source told Fox News the earlier unidentified object was discovered 'over Alaska not far from the northern coast'.