Firefighters have built containment lines around 78 percent of the 4-day-old Colby Fire burning in the foothills above Azusa and Glendora, authorities announced Sunday.
Officials also updated the damage toll. One home that was previously listed as damaged was reclassified as destroyed, according to U.S. Forest Service officials. The fire has destroyed six homes and 10 outbuildings, as well as damaged five other homes and one additional outbuilding.
Four people — two firefighters and two civilians — have been injured in the fire since it first broke out about 6 a.m. Thursday near the Colby Trail just north of Glendora.
The wildfire did not grow overnight, remaining at just over 1,900 acres in size, officials said.
And although the thick smoke that blanketed the region Thursday is gone, firefighters remained hard at work in the steep hillsides toward their goal of 100 percent containment by Wednesday morning, Angeles National Forest spokeswoman L’Tanga Watson said.
“We’re trying to build two miles of line around it today,” she said.
Additionally, firefighters continued “cleaning out the interior of the fire,” Watson said, burning off unburned vegetation within the fire perimeter in a controlled manner.
Forty-five firefighter hand crews, 100 fire engines, three helicopters, eight fixed-wing aircraft, and five bulldozers remained assigned to the fire Sunday, officials said.