State Police fire investigators the cause is not suspicious and is classified as "careless discard of smoking materials" in the garage.
CLICK HERE for the web-page co-workers have set up to help the family.
*** UPDATE ***
Officals say that 29-year-old Tiffany Dorman has been identified as the woman killed in the fire overnight.
Authorities also say that Charles Hughes, his 2-year-old son and Dorman's 11-year-old son were in critical condition at Hurley Medical Center.
Watch NBC25 tonight at 6 for more on this story.
*** END UPDATE ***
An early morning fire has claimed the life of a 29-year-old mother of two.
Diana Hughes is the aunt of the 24-year-old man who lives at the home on the 11-hundred block of Lask Drive in Flint Twp.
Hughes tells NBC 25 her nephew received a phone call while at work from his wife around 1am Wednesday morning. But all he heard was the sound of a fire detector going off. His 29-year-old wife never said a word. Family members believe the call was made in distress.
Flint Township Fire Chief John Ringwelski says he believes the woman who lived inside the home was trapped, lost consciousness and died during the fire.
Her two small children were also inside during the fire. Hughes says her nephew rushed home after getting the call from his wife. He and two other males broke a bedroom window and pulled the two children out of the burning home. They were not able to save the children's mother.
The children are in ICU at Hurley Medical Center. The father is also being hospitalized.
No word yet on what caused the fire. The state fire marshal is investigating the incident.