STOCKTON -- Stockton Fire crews worked to put out a four-alarm apartment fire in the city's downtown area that began around 7:20 a.m. Tuesday.
The fire burned at Mayfair Apartments located at 807 North El Dorado Street.
Jose Tienda was jogging near the building when he noticed the smoke and ran inside to pull the fire alarm.
"It was kind of just building up. And I knew something was wrong. It just kind of didn't look right," Tienda said.
Mayfair Apartments is a low income, 47-unit housing community. San Joaquin County uses the apartment building as an option for independent, affordable housing for mental health patients.
Fire crews say the old building does have working sprinklers. But, the fire was so fast and so hot, it went through all the floors, and even through to the roof.
Crews faced heavy fire on the third floor, fourth floor and in the attic space.
Two Stockton firefighters were transported to local hospitals for injuries suffered during the fire.
One had debris fall on him the other suffered heat exhaustion.
Out of the 46 residents, 15 were rescued through the front door.
Stay with FOX40 for updates.