Port Huron Firefighters helped rescue two of three residents off a roof from a house that was on fire early this morning.  All three were taken to a local hospital with one transferred to another facility outside of the city.  The extent of injuries were not immediately available.  The two story single family house is located in the 1300 block of Gordon.  Port Huron Fire Department Fire Marshal Jeff Tucker says crews were called to the scene at just after 3 a.m. The interior of the home saw smoke and fire damage.  Investigations continue into the cause.