Michigan State Police are investigating a crash involving a car that submerged in a watery ditch early Wednesday on Interstate 94 in Wayne County, Michigan. 

The driver, a 25-year-old woman from Newport, was located at the scene and now appears to have been the only one in the vehicle. Officers said she was "suspected to be intoxicated." The woman said when she got out of the vehicle that her boyfriend was still in the car, but his whereabouts could not be confirmed, the MSP's Second District reported. 

But no one was found inside, or in the nearby ditch, when the car was pulled out during the day.

The calls to 911 were made about 3:40 a.m. Wednesday, reporting a single-vehicle crash along eastbound I-94 near Ecorse Road. When officers arrived, they found a car struck a pole and then was submerged in the water. 

The Downriver Mutual Aid Dive Team assisted on site with a search of the water and to help recover the car. 

The woman has been arrested and a blood draw obtained, charges are pending toxicology and prosecutor review.

"This driver was very lucky that other drivers noticed debris from her crash," MSP F/Lt. Mike Shaw said . "Her vehicle was far enough in the wood line and became submerged in the ditch and would have been very difficult to see from the roadway."