A hobby club in Illinois is missing a balloon. Was it shot down over Yukon?

Last Saturday, the North American Aerospace Defence Command (NORAD) shot down an object over Yukon — one of four mysterious objects that were downed over the U.S. and Canada this month.

That same day, Feb. 11, a small hobby club — the Northern Illinois Bottlecap Balloon Brigade (NIBBB) — received its last transmission from one of its pico balloons on its seventh circumnavigation around the world. The balloon was near Hagemeister Island, off the southwest corner of Alaska.

"At that time and as we often do, we used NOAA's HYSPLIT model to predict where the balloon may go from there," the club said in a blog post on its website Friday. The prediction? That it would be floating over Yukon.

Now, NIBBB has declared the balloon "missing in action," drawing speculation it could be the same balloon the RCMP had been hunting for on the ground in Yukon with the assistance of the Canadian Armed Forces.