The Spokane Valley Fire Department units responded shortly after 11 a.m. to a report of flames coming from the roof of the Three Sisters Vietnamese & Chinese Cuisine restaurant, located at 10615 E. Sprague Avenue. When firefighters got on scene they saw smoke coming from the single-story building and upgraded the incident to a working fire, which brought more resources and firefighters to the scene. Crews arrived to find flames coming from the roof vent above the restaurant's kitchen. They quickly extinguished the fire, preventing further damage and then checked the building for any other flames that may have extended outside the kitchen ventilation system.