Firefighters say a vacant house has burned down in what appears to be a suspicious fire. Crews with the Yakima Fire Department responded to a report of a fire at 704 N 20th Ave. around 1 a.m. Monday and arrived to find a two-story house on fire. YAKIMA, Wash. - Firefighters say a vacant house has burned down in what appears to be a suspicious fire. Crews with the Yakima Fire Department responded to a report of a fire at 704 N 20th Ave. around 1 a.m. Monday and arrived to find a two-story house on fire. Ads by ZEDO Firefighters said flames were burning at the entire back half of the house. Firefighters began attacking the flames from outside, and once it was safe to go inside, they said they did not locate any people and the house appeared to be abandoned.