A Southern California brush fire grew to 3,600 acres forcing thousands of campers to cut their weekend short. This occurred in Angeles National Forest which is currently under surveillance by firefighters to keep the fire from spreading. Click below to read more.

Jason J.

A Southern California brushfire that was only five percent contained grew to 3,600 acres late Sunday, authorities said, forcing thousands of weekend campers to cut short their visits to the popular Angeles National Forest.

The blaze, which broke out near a campground Sunday afternoon, sent a huge cloud of smoke that could be seen from the coast to the desert inland, according to The Associated Press.

Officials said that no structures were threatened, according to Inciweb, a wildfire reporting site. Based on the direction the blaze is heading, no structures were expected to be under threat, the site said.

According to the Los Angeles Times, around 300 firefighters have been sent to combat the blaze. Air tankers and helicopters were also being used to drop water and fire retardant on the blaze, the newspaper said.

By late Sunday, the fire was pushing north on steep terrain toward the Sheep Mountain Wilderness, the Times reported.

NBC News