(UPDATE - 1:07 p.m):
Authorities say crews are still working to contain this 3-acre fire.
Firefighters are battling the flames on the ground while air units conduct water drops.
The cause of the fire is under investigation.
No structures are currently threatened.
Firefighters are responding to reports of a brush fire that broke out Friday afternoon off Highway 154.
It started around 11 a.m. just east of Cachuma Lake.
There have been no reports of road closures or evacuations at this time.
This is a developing story and will be updated as information becomes available.