Investigators are looking into what caused a fire that erupted in a home at 1509 N. 7th Street Wednesday morning.“The fire marshal is handling that. He is investigating to see if it is arson,” said volunteer fire chief Brian Beck. “We don’t talk about ongoing investigations.”Fire Marshal Levi Roberts was unavailable for comment.The fire ignited before 10 a.m.The home’s interior and a little bit of its exterior sustained damage, Beck said.No one was home at the time of the fire.It took six volunteer and three paid firefighters about 30 minutes to extinguish the fire.The property’s owner, John Garcia, arrived at ...