A 30-year-old Lawrence man was arrested Sunday accused of threatening another man with a chain saw during an argument.

Sgt. Trent McKinley, a Lawrence police spokesman, said the disturbance occurred around 2 a.m. Sunday at an apartment in the 1300 block of Michigan Way, but police were not notified until about 12 hours later.

McKinley said witnesses allege the suspect, Ryan Shelby Harjo, was angry that the victim would not immediately leave the apartment so the suspect used a chain saw to scare the man. He did eventually leave the apartment. After officers conducted interviews later Sunday, they arrested Harjo on an aggravated assault charge, and Douglas County prosecutors filed a formal aggravated assault charge against him Monday afternoon.

Prosecutors said he had no past criminal history, and Harjo said he was the sole provider for his wife. Pro-tem Judge James George agreed to set his bond at $1,000 cash or surety. He’s due in court again 2 p.m. Wednesday.