MANCHESTER, N.H. (WHDH) -- A 74-year-old woman had just finished taking money out of a drive-thru ATM machine when she mistakenly put her minivan in reverse and backed up onto the car in back of hers. No one was seriously hurt.

It's a picture that could have come from a monster truck rally and even witnesses can't figure out how it happened.

“I was just really surprised. At first I thought it was a joke like I wasn't quite sure,” said Lisa Bliven.

Lisa Bliven was in her front yard across from St. Mary's Credit Union around 4:30 p.m. when police say the 74-year-old minivan driver had accidentally put her van in reverse at the drive-thru ATM.

“I think she panicked, maybe a little confusion on her part and probably went to hit the brake but actually hit the accelerator,” said Lt. Michael Hurley, Manchester Police Department.

The van took off, rolling up the front of the sedan. A family of four -- a husband, wife and two teenage sons -- were all able to climb out of their car.

The mother, who was in the passenger seat, went to the hospital with a bruised leg.

“The kids looked scared I mean, everyone was scared,” Bliven said. “When they took the van off that bottom car was crushed, just crushed.”

The minivan's driver is disabled and she was trapped.

“She wanted to get out but there was no way she could have gotten out, and the car was kind of on an angle and it easily could have tipped over,” Bliven said.

She was put on a stretcher but told 7News off camera she's okay, and thanks God no one was badly hurt.

“Those kids must have been petrified and the woman in the van must have been petrified,” Bliven said.

Police say the state will review the minivan driver’s license.