At 2140 hours, Company 1 (Palmyra) and surrounding departments were dispatched on Box 1-06 to 9 North Londonderry Square at the Burger King for a commercial structure fire. Multiple calls were being received and the building was being evacuated. Chief 1 went on scene with a working fire in the roof and requested the working fire dispatch. A hand line was stretched to the interior where crews located fire in the walls. Fire also involved the roof area near the Burger King sign. The bulk of fire was knocked down fairly quickly with no extension. Extensive overhaul would be required to expose hot spots which proved to be difficult due to recent renovations to the building. Fire placed under control in about an hour. Mutual aid from Dauphin County.