Fire officials in LaPorte are investigating a suspected arson fire. LaPorte Police report police officers and the fire department responded to a call of a structure fire in the 500 block of East Maple Avenue just before 3pm on Tuesday. Upon arrival, officers observed a grill and two tires that had caught fire in the rear yard and the resident informed police the tires had been moved from their original location and a gasoline container had been moved from the front porch to the scene of the fire. Authorities say they suspect the gasoline may have been used as an accelerant. No injuries were reported.