A vegetation fire burning in the hills near Brea has grown to 40 acres, prompting evacuation warnings and a large-scale firefighting effort Saturday afternoon, according to CAL FIRE and Orange County authorities. The blaze, identified as the “Carbon Fire,” ignited around 1:40 p.m. on Saturday in the area of Carbon Canyon and Olinda Place in unincorporated Orange County. The wildfire quickly spread through dry vegetation in the rugged terrain. Download The California Post App, follow us on