(Eugene, OR) -- An investigation is ongoing in Eugene after an adult allegedly assaulted a child who was playing "ding dong ditch." The incident happened at an apartment complex. Police say a man came out of an apartment and chased a group of children while carrying a large stick that was sharpened at one end. He hit a nine-year-old in the face with the stick and tried to hit a girl, but missed. Thirty-year-old Collin McPherson Lounsbury was arrested for assault. The child was hospitalized.