Ingham County Prosecutor Stuart Dunnings III's wife filed for divorce days after he was arraigned on prostitution-related charges.

Dunnings, 63, is facing 15 criminal charges in three counties, including one felony in Ingham County that carries a maximum sentence of up to 20 years in prison.

Cynthia Dunnings, 59, filed for divorce in Ingham County Circuit Court on Friday.

More: Schuette: Ingham prosecutor paid for sex '100s of times'

Related: Dunnings released from Ingham County jail

"There has been a breakdown of the marriage relationship to the extent that the objects of matrimony have been destroyed," according to the filing, "and there remains no reasonable likelihood that the marriage can be preserved."

Jeffrey Ray, attorney for Cynthia Dunnings, said his client "was shocked like everyone else" at the criminal charges and allegations. He added that Stuart Dunnings III was served on Tuesday with the divorce papers.

They were married in 1977, according to the divorce filing.

Dunnings is charged with pandering, engaging in the services of a prostitute and willful neglect of duty. The charges are the result of a year-long investigation by the Ingham County Sheriff's Office, the FBI and the Attorney General's Office. Information gathered during a federal human trafficking case prompted the local investigation, officials said.

Dunnings has been Ingham County's prosecutor since 1997. He was last elected in 2012. He is free on bond and Chief Assistant Prosecutor Lisa McCormick has assumed his responsibilities.

At a news conference announcing the charges, Attorney General Bill Schuette said Dunnings paid for sex hundreds of times over the past several years and used the power of his office to coerce one woman to be paid for sex.

A message was left seeking comment from Mike Hocking, Stuart Dunnings III's attorney for the criminal cases. No attorney of record was listed for him in the divorce case.

Dunnings has not responded to State Journal requests for comment since he was charged.