Great Bend Fire/EMSFirefighters made four ambulance runs Tuesday.There was a house fire at 8:52 a.m. at 1108 Morton St. At 2:54 p.m. units responded to 1205 8th St. for a cooking fire. Occupants said they had started the oven and did not know that a box of pizza had been left inside. The box started on fire and smoked up the residence.