UPDATE: Rural Arroyo Grande fire under investigation

Cal Fire is investigating the cause of a fire that burned five acres at Tiffany Ranch Road and Corbett Canyon Road in rural Arroyo Grande.

The fire was about 2 acres as of 1:15 p.m. and was contained by 1:40 p.m., officials said.

Planes were called out to drop retardant on the fire. No structures were threatened.

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