Authorities are trying to identify a victim found dead inside a car after it apparently flipped into a culvert, where it remained unnoticed for weeks.

Trooper Steven Marks with the Texas Department of Public Safety said authorities received information about 5:30 p.m. Sunday that a man was found inside an overturned vehicle off US Highway 67, just south of Three-Way. The vehicle, a 1998 silver Pontiac Grand Prix, was in a culvert and not visible from the highway.

“Based on what the medical examiner has said, we believe the body had been there for more than a month,” Marks said.

There is no telling how long the car would have remained unnoticed if the property owner had not gone searching for a lost calf late Sunday afternoon, Marks said.

“He found the car, noticed there was a body inside and called the sheriff’s office,” Marks said.

The body was badly decomposed and authorities are having trouble identifying the victim because no identification was found at the scene. Marks said investigators are waiting on dental records.

The Pontiac was registered to a man who told authorities that he had recently sold it. Investigators are trying to determine if the victim is the same individual who purchased the car.

Marks said there has been no missing person’s report filed that match the victim’s profile.