LAWRENCE, Kan. (AP) — A Lawrence man has been arrested on suspicion of aggravated assault after a six-hour standoff with police. Authorities say officers responded Sunday to a residence around 5:30 a.m., where a 48 year old allegedly threatened another person in the house with a rifle. The victim was able to escape uninjured shortly after police arrived. According to Sgt. Trent McKinley, police then attempted to communicate with the suspect for the next six hours. The suspect eventually emerged from the home just after 11:30 a.m. and surrendered to officers. The suspect is being held in the Douglas County Jail without bond.