Two women are seriously injured after a crash at a popular Minnesota drive-in restaurant.

The Chisago County Sheriff's Office says authorities were called to The Drive In restaurant in Taylor Falls about a crash a little after 2 p.m. on Saturday afternoon. The report said two people had been run over and were still pinned underneath the vehicle, with one of the victims submerged in water.

Drive-In owner Wade Vitalis told the Star Tribune the driver of an SUV had backed up into a table the women were sitting at, pushing it up an embankment and pinning the women underneath. One of the women was stuck in a stream that runs through the picnic area, the paper says – part of a mini golf course next to the drive-in.

Bystanders jumped into action to help, the sheriff's office says. Witnesses told Fox 9 that more than 20 people worked together to save the women, with someone cutting a portion of a hose to help the woman pinned underwater breathe while the group moved the vehicle off of her.

They gave her CPR until paramedics arrived, and both women – ages 36 and 52 – were then airlifted to Regions Hospital in St. Paul with serious injuries, the sheriff's office said.

The Chisago County Sheriff’s Office and the Minnesota State Patrol are investigating the incident and have not released the identities of the victims or driver.

Carly Peterson, an employee at The Drive In who was at the scene, told Kare 11 it appeared the woman driving the car pushed the wrong pedal when backing up to leave the restaurant.

More information is expected to be released Monday.