4,000 acres burn near Sequoia National Forest's Kern River

A wildfire burning in the popular Kern River canyon area of the southern Sequoia National Forest has grown to about 4,000 acres.

Forest Service spokeswoman Cindy Thill said that as of Monday night there had been no evacuations and no injuries, but the sheriff's department is advising residents to be prepared to leave in case the need arises. The fire is 10 percent contained.

Some roads and portions of the Kern River are closed.

Thill says about 600-650 firefighters are battling the blaze. Firefighters are projecting that full containment of the 3-day-old fire will be achieved on Friday.

Earlier Monday, Los Angeles firefighters doused a 37-acre fire in the hills above the northern San Fernando Valley near the Porter Ranch neighborhood. It took firefighters a little more than an hour to bring the blaze under control. No structures were threatened.

Copyright 2010 The Associated Press.