There is still no indication about what caused the Waldo Canyon Fire, which became the most destructive in state history when it raged into Colorado Springs and destroyed an estimated 346 homes.
Mayor Steve Bach announced the number at an evening press conference Thursday.
The FBI says it's working with local and state law enforcement agencies to determine if any of Colorado's fires were deliberately set. At the press conference, local authorities confirmed they would look at any photos or videos from citizens that could help to identify the cause.
Fire investigators are still waiting for firefighting commanders to indicate it's safe for them to enter the burned area.