Fire crews worked Sunday to extinguish a brush fire near the Gonzales Canyon open space area, north of Carmel Valley.

The fire was near the dead end of Rancho Dorado Bend, and was reported at 12:10 p.m. It had grown to about two acres in about 15 minutes, according to the San Diego Fire-Rescue Department.

No injuries were immediately reported and the cause of the fire had not been determined, a city fire dispatcher said.

— City News Service

Chris Jennewein is founder and senior editor of Times of San Diego.