A St. Petersburg family escaped injury Sunday afternoon as a fire swept through their home. 

Firefighters responded to reports of a fire at a home on 21st Street South at about 2:30 p.m.

When crews arrived, they found a fire in one of the bedrooms. A woman and three children managed to make it out of the home safely. 

However, the home has significant damage and is now unliveable. 

The Red Cross is helping out the family, which was renting the property. 

No official cause of the fire has been determined, one of the residents said it may have started with a space heater. 

St. Pete Fire Rescue is reminding residents to only use space heater in accordance with the manufacturers' recommendations.