WASHINGTON (AP) — A U.S. military fighter jet has shot down an unknown object flying off the northern coast of Alaska. That’s according to White House officials Friday. National Security Council spokesman John Kirby says the object was flying at about 40,000 feet and posed a “reasonable threat” to the safety of civilian flights. Kirby says President Joe Biden ordered the military to down the object, which the spokesman described as roughly the size of a small car. That’s much smaller than the massive suspected Chinese spy balloon downed by Air Force fighter jets Saturday off the coast of South Carolina.