Dry brush in the San Gabriel river bed caught fire in Duarte overnight, and strong Santa Ana winds fanned flames that charred roughly 35 acres of brush.
The fire was first reported at about 2:15 a.m. and was quickly pushed toward an open field of brush between Las Lomas Road and Encanto Parkway by winds of between 10 and 15 mph, said Los Angeles County Fire Capt. Mike Brown.
Roughly 100 firefighters were sent to battle the blaze. The attack included both ground units and helicopter water drops.
By about 6 a.m., the fire was estimated to be about 95 percent contained, Brown said. Shortly before 8:30 a.m., the fire was declared to be 100 percent contained, said fire Inspector Frank Garrido.
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One firefighter suffered a minor leg injury, Brown said.
No evacuations were ordered, even though the fire was burning toward several homes as it took off. Ultimately, the fire was contained to the river bed area, Brown said.
Also Tuesday morning, a fire scorched less than an acre of brush near the westbound Foothill (210) Freeway in the Tujunga area.
Firefighters were sent to the area a half mile west of La Tuna Canyon Road at about 6:20 a.m. and doused the flames in 39 minutes, according to the Los Angeles Fire Department.
The westbound freeway was closed as a precaution and served as a staging area for fire vehicles. One westbound lane was reopened about 8:10 a.m., the California Highway Patrol reported.
No structures were threatened. The cause of the fire was under investigation.