A man and a woman were gravely injured in a Sun Valley house fire on Saturday, firefighters said.
The structure fire was reported at 8:04 p.m. at 9145 La Tuna Canyon Rd., said Los Angeles Fire Department spokesman Brian Humphrey.
The house was "well-involved" with flames, he said.
Chris Laskaris, a neighbor, said he doused himself in water and went inside the burning home but the smoke and flames were too much.
"The lady was frantic," he said. "Me and the other guy tried to go in but the smoke was pretty insense. We tried to crawl where we could breathe. It was pitch black and you couldn't see anything."
Firefighters rescued two adults from the residence who suffered grave injuries, Humphrey said.
The fire was extinguished by 8:55 p.m., he said.
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Another woman was rescued in fair condition with only a minor burn to her hand, Humphrey said.
One firefighter had an unspecified injury and was being evaluated at the scene, he said.
The fire at the Hacienda-style home started in the attic before spreading to the rest of the residence, Humphrey said.
