Firefighters battled a residential blaze that broke out near downtown Berkeley this morning, the city's fire chief said.
At 9:45 a.m., firefighters responded to a two-alarm blaze at 2606Milvia St., Fire Chief Debra Pryor said.
Because the building is old and lacks certain safety features, the fire was able to spread through the walls and into the attic, she said.
"It was a very stubborn fire for us to fight," Pryor said.
A firefighter suffered smoke inhalation and exhaustion and was taken to a hospital for treatment, Pryor said.
The residents got out of the building safely and no other injuries were reported.
Firefighters were still at the scene early this afternoon.
"We haven't even started the investigation, "Pryor said shortly after noon.
Six engines and two trucks responded to the fire.