Three helicopter crews and 110 firefighters were able to contain a brushfire alongside the northbound San Diego (405) Freeway at Skirball Center Drive in about an hour, according to the city fire department.
The blaze had grown to at least two acres. No evacuations were ordered, no injuries reported and no property damage was reported, said LAFD spokesperson Brian Humphrey.
The California Highway Patrol says there has been an arrest in connection with the fire.
CHP Officer Monica Posada confirmed one person had been arrested Monday, but she had no further details.
The CHP says several drivers reported seeing a man, possibly a transient, wearing a yellow or tan hoodie jacket running away from the scene.
The cause of the fire was still under investigation. The fire had originally been reported at 2:49 p.m.
Humphrey said motorists could expect delays as they commuted through the Sepulveda Pass.