This time, it was unexpected "simulated explosions" that rattled residents in a neighborhood of Flint, Michigan after the U.S. Army initiated training without warning the locals – despite the fact that the drills, which will last until June 12, had been planned for six months.

According to WNEM 5:

"I was standing there, and all of a sudden, boom!" Jean Glenn said.

"I mean it was loud, it blew up the whole sky or whatever, it was like four or five big bangs," Annette Humphrey said.

Explosions you'd expect in a war zone echoed through Flint. People's homes shook and those inside were caught off-guard. It all went down Tuesday at the shuttered Lowell Junior High on the city's east side.

MLive added:

"They should warn the residents around here at least when there's something that loud and scary," said Nicole Robinson, 28. "That's pretty crazy."