UPDATE (5:30 p.m.) - CAL FIRE SLO reports that the fire is now contained.
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UPDATE (5 p.m.) - Fire officials say better mapping shows the fire burned 2.8 acres.
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UPDATE (2:28 p.m.) - CAL FIRE SLO reports the fire has burned roughly four acres and forward progress has been stopped.
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(2:13 p.m.) - Firefighters are at the scene of a brush fire near the 2000 block of Pioneer Ranch Road in Templeton.
The fire broke out at around 1:45 p.m. on Friday.
CAL FIRE SLO reports that the fire has burned approximately 1/2 acre and is threatening one structure.
The cause of the fire is under investigation.