A container with debris was trucked away on Friday afternoon from the site of the Jan. 6 fire in downtown Shelton. (Photos by Brad Durrell) While much of the charred remnants has been removed by being put directly into dump trucks, some items \u2014 perhaps that with asbestos and other hazardous material \u2014 was instead placed inside a red container during the early stages of the cleanup and investigation. On Friday, this container was attached to a truck and transported off-site. A lot of debris remains at the site and is expected to removed in the coming weeks, now that the investigation is officially over. Cause is \u2018undetermined\u2019 Fire investigators could not determine the cause of the fire, leaving it as \u201cundetermined,\u201d partly due to the massive destruction and building collapse. The fire is believed to have started in the basement of the main structure under stores at the corner of Howe Avenue and Bridge Street. Howe Convenient and Dollar Chest were on the ground floor in that area. The fire destroyed much of a city block on Howe Avenue between Center Street and Bridge Street\/Viaduct Square, on the Coram Avenue side. The blaze displaced almost 30 residents and eight businesses. Five people went to the hospital for non-life-threatening injuries. The main four-story structure collapsed. More than 100 firefighters from Shelton\u2019s four volunteer companies and many surrounding towns battled the blaze, rescuing some residents with tower ladders from third-floor windows. No fire personnel were injured during rescue and firefighting efforts.