BENTON TOWNSHIP, Mich. -- Police are investigating an armed robbery at the Napier Shell gas station that happened early Monday morning, according to Benton Township Police.

The armed robbery happened around 3 a.m.

Police spoke with the clerk who said a man who was wearing all gray with a hoodie and a face mask displayed a gun and demanded cash from the register.

The suspect then fled the scene.

A Michigan State Police K9 unit attempted to track the subject, but they were unsuccessful.

If you have any information in this case, please contact the Benton Township Police Department at 269-926-1135 or Crime Stoppers at 1-800-342-STOP.