Michael K. Marby, 40, of Crystal Lake, has not been in contact with his friends or family since September 21, police said. | Provided Photo

Police are seeking the public’s help in locating a Crystal Lake man who has been missing for over a month as officials say they are concerned for his wellbeing.

Michael K. Marby, 40, of Crystal Lake, was reported missing to the Crystal Lake Police Department on October 21.

Crystal Lake Deputy Police Chief Richard Neumann said one of Marby’s friends made the report after being unable to make contact with him since September 21.

The friend last saw Marby in Cicero and is the last confirmed person to have contact with him, Neumann said.

The Crystal Lake Police Department said they have since investigated the circumstances surrounding his failure to communicate with his friends or family.

“We do not suspect Michael’s disappearance was the result of foul play; however, we share in the concern for his well-being,” Neumann said.

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Crystal Lake detectives are pursuing a number of leads, the department said.

Marby is described as being 5-foot-10 and weighing approximately 170 pounds.

He has fair skin, blue eyes and brown hair.

Anyone who may have information relating to his whereabouts is asked to contact the Crystal Lake Police Department at 815-356-3620.

Those who wish to send an anonymous tip to the Crystal Lake Police Department can do so by texting the word CLPDTIP along with the tip information to 847411.