This undated image provided by Clermont County Sheriff's Office shows Wade Edward Winn. Clermont County Municipal Court records show Winn, a man accused of fatally shooting a sheriff's deputy during a 12-hour standoff ending Sunday, Feb. 3, 2019, in Ohio, has been charged with aggravated murder. (Clermont County Sheriff's Office via AP)

This undated image provided by Clermont County Sheriff's Office shows Wade Edward Winn. Clermont County Municipal Court records show Winn, a man accused of fatally shooting a sheriff's deputy during a 12-hour standoff ending Sunday, Feb. 3, 2019, in Ohio, has been charged with aggravated murder. (Clermont County Sheriff's Office via AP)

CINCINNATI (AP) — A sheriff’s deputy was shot and killed during a 12-hour standoff at an apartment complex in Ohio that left another deputy wounded and a suspect in custody, authorities said Sunday.

Capt. Jeff Sellars of the Clermont County Sheriff’s Office said officers responded about 7 p.m. Saturday to the Royal Oaks Apartments in Pierce Township, about 20 miles (32 kilometers) east of Cincinnati, following a 911 call from a man who said he believed someone was inside his residence.

Authorities say the caller then said that he was armed and eventually told the dispatcher that he was suicidal.

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But it was unclear from authorities’ statements whether the caller was referring to himself or to the person he said was inside his home. It was also unclear whether the suspect himself made the call. Authorities found only one person in the home.

Authorities say 23-year-old Wade Edward Winn was taken into custody. Clermont County Municipal Court records show Winn has been charged with aggravated murder and attempted aggravated murder.

David O’Neil, a spokesman for Ohio’s attorney general, confirmed the charges Sunday but said he couldn’t disclose where the suspect was being held.

The Clermont County Sheriff’s Office said Detective Bill Brewer died from his wounds. The other deputy, Lt. Nick DeRose, was treated for a gunshot wound in the ankle and released from a hospital, O’Neil said.

“Deputy Brewer gave his life attempting to help a person who was admittedly suicidal,” Sheriff Steve Leahy said in a press release. “This will forever change the atmosphere of the Clermont County Sheriff’s Office.”

Ohio Attorney General Dave Yost said in a separate release that Brewer’s “valor is now recorded for all time, written in blood.”

“We mourn and we will remember,” Yost said

Ohio Gov. Mike DeWine on Sunday ordered all U.S. and state flags throughout Clermont County and at the Statehouse flown at half-staff in honor of Brewer. The Republican governor’s order is in effect from Sunday until sunset on the day of Brewer’s interment.

A court hearing was scheduled for Winn at 10 a.m. Monday in Clermont County Municipal Court in Batavia, O’Neil said.

Authorities say the investigation is ongoing.