A fire burning in an Oceanside riverbed grew to about four acres, North County fire officials say.
The flames started behind Mission Vista High School at about 2:40 p.m., near the 1300 block of Melrose Drive.
Firefighters say the fire was moving through dense brush but at a slow rate of speed.
No structures were threatened and no evacuations ordered. Crews had the fire out by 3:30 p.m.
