YAKIMA, Wa - The Yakima Fire Department is investigating a possible arson case. Fire investigators are calling a fire at a house on the 500 block of North 5th Ave suspicious. It happened at a little after three in the morning. Twelve firefighters responded and it took about ten minutes to put the fire out. They say a police officer on patrol saw the fire first and was able to safely escort the person who lives there from the home. Total damage is estimated at 20-thousand dollars.