VIDEO/PHOTOS: Madison Fire Chief Chris Carbon gave an update on the explosion in the area of South Gammon Road and Park Ridge Drive in Madison. According to Chief Carbon, multiple injuries have been reported. First responders took one person to the hospital, and three others traveled to the hospital on their own. The city's Heavy Urban Rescue Team remains on scene in an effort to secure the building. Crews have searched the building and have no reason to believe anyone is trapped inside and they haven’t received any reports of any missing individuals. Chief Carbon says at least six units have been affected and have been deemed uninhabitable. Madison Police have asked the public to stay clear of the 900 block of South Gammon Road. Several agencies have responded to the explosion including Madison Police, Madison Fire and Madison Gas and Electric.