(Hamilton)---Hamilton firefighters are investigating the cause of another structure fire in the city. Flames were reported coming from the vacant house on the 1100 block of Ross Avenue when first responders arrived on the scene. Deputy Fire Chief Kenneth Runyan says no cause has been determined yet, and no dollar estimate has been put on the damage. There were no injuries. A next door neighbor tells WMOH that a window was broken at the house a day prior to the blaze.