Authorities says two F-16 fighters were dispatched to track a single-engine plane over Wisconsin that was believed stolen in Canada by a student pilot.
Michael Kucharek, a spokesman for the North American Aerospace Defense Command in Colorado, says the Cessna 172 was stolen from Thunder Bay, Ontario, around 2:30 p.m. Monday.
Kucharek says the pilot flew erratically and did not communicate with the fighter pilots, who intercepted the plane at the Michigan-Wisconsin state line.
Kucharek says the pilot acknowledged seeing the F-16s but did not obey their nonverbal commands to follow them.
He says the plane was not believed to be a terrorist threat.
Still, Department of Justice spokesman Bill Cosh says the state Capitol building in Madison was evacuated as a precaution.