DULUTH, MN (KDAL) - The Red Cross is now working with the four residents who were left homeless after fire heavily damaged their Lincoln Park apartment house. The Duluth Fire Department dispatched firefighters to 2713 West 4th Street just after 4:15 Wednesday morning. The arriving crews reported considerable fire on the first floor of the structure and flames advanced to the 2nd floor and into the attic. There were working smoke detectors in the building and all occupants were able to escape without injury. Damages are estimated at 100 thousand dollars and the Duluth Fire Marshall is investigating the cause.