This story originally cited an incorrect location of the fire.
The Tucson Fire Department (TFD) has contained a fire at a mobile home near Flowing Wells Road.
Firefighters say the flames were caused by a resident smoking too close to an oxygen tank late Wednesday evening.
First responders saw heavy smoke and fire pouring out the back of the mobile home.
Neighbors soon let them know of a person still inside.
That's when firefighters from Medic 8 and Rescue 8 entered to find an elderly woman dead.
TFD crews contained the flames within a half hour.
The department confirms no foul play is suspected.
It also warns the public to always properly dispose of cigarettes by drowning them in water or sand.
Caleb Fernández is a digital content producer for KGUN 9. After earning his bachelor's degree from Penn State in Advertising/Public Relations, Caleb went to New York where he learned production assistance, photography and art direction. Share your story ideas and important issues with Caleb by emailing email@example.com or by connecting on LinkedIn, Instagram, and Twitter.