A Newcastle teenager is being celebrated as a hero after making a split-second decision to save a young girl's life during a fatal house fire — an act of bravery that came at a devastating personal cost to the young rescuer.

The incident, which has drawn widespread praise from the community, highlights the extraordinary courage shown by the teenager in the face of a life-threatening emergency.

While full details of the fire are still emerging, it is understood the teenager's rapid actions were the decisive factor in preventing the girl from perishing in the blaze.

The selfless rescue has resonated deeply across Newcastle, with many calling the young person's conduct a remarkable example of heroism under pressure.