One person is hospitalized following an apartment fire last night. Mankato Firefighters responded just after 6 p.m. to the fire at 121 Ahlstrom Road. When crews arrived, they learned that one of the tenant’s neighbor’s had used a portable fire extinguisher to put out most of the fire. Firefighters did extinguish a fire still smoldering in the apartment’s oven. One person was transported to the hospital by ambulance to be treated for smoke inhalation. Damages are estimated at $1600. The cause is under investigation.