SAULT STE. MARIE, Mich. -

Authorities in the Upper Peninsula are investigating a crash that led to the arrest of a state police post commander on a drunken driving charge.

The Daily News in Iron Mountain said Lt. William Smith was arrested Saturday by police in Sault Ste. Marie for operating a motor vehicle while intoxicated.

Chippewa County Prosecutor Brian Peppler said the arrest followed a traffic accident in a personal vehicle.

Peppler said no charges have been authorized pending results of a blood test.

The 43-year-old Smith was appointed commander of the Gladstone post in April.

He has been suspended with pay pending the outcome of the investigation.

Peppler has worked with Smith in the past and said he's ask state Attorney General Bill Schuette to appoint an outside prosecutor for the case.