(PORT HURON) -- Three people were injured, one seriously, in a house fire early Wednesday morning in the 1300 block of Gordon Street in Port Huron. Firefighters were sent to the residence just after 3 a.m. to find heavy smoke coming from the home. Two of the occupants were able to get outside to safety before the fire department arrived. A third occupant was rescued by firefighters after being trapped. Port Huron firefighters, with assistance from the Marysville Fire Department, quickly extinguished the blaze. The home sustained serious damage from high heat and smoke. Family members were able to get several newborn puppies out of the house safely, but the family dog did not survive. All three occupants were transported to local hospitals for treatment. One person was taken to a Detroit area hospital for further treatment. Fire Marshal Jeffery Tucker says the investigation into the fire is ongoing, but preliminary results indicate the cause may have been from careless cooking. Tucker says this is the second careless cooking fire within the last six days that has occurred within the city of Port Huron.