UPDATE (5:20 p.m.) - Fire crews say they have stopped the forward progress of the Topaz Fire.
Officials say the fire is holding at six acres.
CAL FIRE SLO says firefighters will remain on scene for about another hour to mop up. Aircraft is being released.
UPDATE (2:50 p.m.) - CAL FIRE SLO says a half-acre of brush is burning under the arrays at the Topez Solar Farm.
They say both air and ground attack are helping to put out the fire which they are calling the Topaz Fire.
ORIGINAL (2:36 p.m.) - A vegetation fire has been reported near the Topaz Solar Farm in California Valley Sunday afternoon.
Ground and air crews are heading to the fire, according to a tweet from CAL FIRE SLO.
The fire was initially reported shortly before 2:30 p.m. Sunday on 10400 Helios Way in Santa Margarita.
There is no word yet on the cause of the fire, nor if there have been any evacuations or injuries.
This is a developing story. We will update this story as more information becomes available.