People spotted the helicopters from street corners and downtown high-rise windows. Swooping low and darting between buildings, the choppers rattled houses and swiveled the heads of fans watching the Twins play at Target Field.
All across St. Paul and Minneapolis on Monday night, curious and sometimes frightened residents asked the same question: What the heck was that?
Turns out it was a repeat visit from the Night Stalkers, an Army regiment based at Fort Campbell, Ky., that specializes in night missions using the famed — and famously loud — MH-60 Blackhawk helicopters.
They'll be in the Twin Cities through Thursday, conducting training exercises much as they did here two years ago when they last raised local eyebrows, and up to a dozen times a year in urban areas around the country.
Still they took much of the population by surprise Monday, since media and even some local leaders were not told about the training until shortly before the choppers lifted off and the exercises began around 9 p.m.
It was all pretty routine even if it didn't seem like it, said Maj. Allen Hill, a public affairs officer with the 160th Special Operations Aviation Regiment at Fort Campbell.
"This is training we do all year-round," he said. "The unfortunate part is that the helicopters are loud and fast and, if you're not expecting them, a distraction."
St. Paul City Council Member Dave Thune fumed that "there were helicopters flying between buildings downtown. Forget that they're well trained and everything — the last time an aircraft hit a building, the World Trade Center fell down. That's what they're screwing with here."