WASHINGTON (DC News Now) -- Firefighters in Washington, D.C., were called to the Cannon House Office Building on Thursday after a space heater caught fire. In a post on X, DC Fire and EMS said the call came in around 9:40 a.m. The fire department said companies found the small space heater in the hall. The fire was extinguished before crews arrived. ZooLights to transform Smithsonian’s National Zoo into winter wonderland for holidays As a result of the fire, the building was ventilated for smoke. Washington, D.C. fire engines parked outside of Cannon House Office Building after space heater fire on Nov. 21. (X/@dcfirems)(X/@dcfirems) The Cannon Building, completed in 1908, is the oldest congressional office building in the United States Congress and is an example of the Beaux Arts style of architecture. Currently, the Cannon Renewal Project is underway and involves a renovation of the building's accessibility and structural issues. The project is expected to be completed in 2025.