The Isabella County Sheriff says they are investigating a suspicious death.

Sheriff Michael Main says they received a call from a woman who discovered a man inside his vehicle deceased.

During an investigation, deputies found a 45-year-old man from Union Twp., in his driveway. A hand gun was found at the scene but it was located under some clothing in the driveway.

The first responding deputies determined that the incident required further investigation.

According to a press release, it appeared the man may have taken his own life as the investigation continued but the matter is still open waiting autopsy and other follow up by the Sheriff’s Office.