Two U.S. Navy helicopters flew over Lambeau Field during Thursday's preseason game, which caught police and Green Bay Packers personnel by surprise.
"That had us scrambling last night," Green Bay police commander Paul Ebel said, per Richard Ryman and Doug Schneider of the Green Bay Press-Gazette.
The helicopters flew over the stadium during the first quarter after Green Bay scored a touchdown against the Pittsburgh Steelers. "I was as surprised as anyone," Packers president Mark Murphy said Friday, per Rob Demovsky of ESPN.com.
This article will be updated to provide more information on this story as it becomes available.