A fire broke out early Friday morning in Hyannis that resulted in three residents hospitalized, authorities say. The Hyannis Fire Department told Boston 25 News crews were alerted to the house fire at approximately 3:33 a.m. at 41 Oak Street. Three people were sent to Cape Cod Hospital, but the extent of their injuries is unknown at this time. The fire was put out shortly after 5 a.m., but crews are still on scene investigating the cause of the fire.