UPDATE: Full Containment On Trilogy Fire Expected Sunday

6/4 UPDATE 7:45 a.m.: The U.S. Fire Service is reporting that the Trilogy Fire is 80 percent contained, and full containment is still expected Sunday afternoon.

According to an incident update from U.S. Forest Service spokesman Jake Rodriguez, the blaze has burned 160 acres. There is no active flame front and the fire is not expected to grow.

The fire, which is now isolated in the Cleveland National Forest, started Thursday at approximately 12:20 p.m. just west of the Trilogy Retirement Community near Temescal Canyon Road.

The cause of the fire is under investigation.

6/3 UPDATE 12:30 p.m.: The U.S. Fire Service is now reporting that the Trilogy Fire will be fully contained Sunday afternoon.

According to an incident update from U.S. Forest Service spokesman Jake Rodriguez, the 160-acre blaze is 60 percent contained. There is no active flame front and the fire is not expected to grow.

The blaze, which is now isolated in the Cleveland National Forest, started Thursday at approximately 12:20 p.m. just west of the Trilogy Retirement Community near Temescal Canyon Road.

The cause of the fire is under investigation.

6/3 UPDATE 7 a.m.: The U.S. Forest Service reports that firefighters battling the Trilogy Fire burning near Temescal Canyon Road, just west of the Trilogy Retirement Community, may have containment on the blaze today.

"We definitely made progress overnight," said U.S. Forest Service spokesman Jake Rodriguez. "There are still some hot spots, but no active flames."

Rodriguez said he didn't have an updated containment percentage or number of acres burned.

"We're at about 160 acres. Last night containment was at 50 percent, but we've definitely gone up," he said, noting that updated figures should be available shortly.

Rodriguez said steep conditions have made fighting the blaze difficult. Efforts have relied heavily on air power and hand crews, he said.

"There were a lot of guys and gals hiking in the hills," Rodriguez said of the firefighters working the blaze. "It's been an impressive effort."

The U.S. Forest Service has taken command of the fire, but Rodriguez said other agencies, including Cal Fire/Riverside County Fire Department, are assisting with the efforts.

The blaze is burning in the Cleveland National Forest.

Rodriguez said no firefighters have been injured during the efforts, and no homes or structures were ever threatened.

The blaze is believed to have started in an old orange grove at about 12:20 p.m. Thursday.

The cause of the fire is under investigation.

6/2 UPDATE 9 p.m.: Cal Fire/Riverside County Fire Department is reporting that the Trilogy Fire, which is burning southwest of the Temescal Canyon Road and Trilogy Parkway intersection, is 50 percent contained.

6/2 UPDATE: As the sun sets Thursday, Cal Fire/Riverside County Fire Department spokeswoman Jody Hagemann says the fire burning in the mountains west of the 15 Freeway at Temescal Canyon Road is still at about 20 percent containment.

Known as the Trilogy Fire, the blaze broke out around 12:20 p.m. today in an old orange grove and has burned nearly 200 acres.

Residents in the nearby Trilogy Retirement Community have not been ordered to evacuate, and no homes have been threatened, Hagemann said Thursday evening.

The winds have been relatively calm all day, but the terrain has made fighting the blaze difficult.

Corona Fire Engineer Tony Mosqueda said earlier this afternoon that the mountainous environment is hard to access and very steep.

No injuries have been reported.

Hagemann said Thursday evening that fire fighting efforts are being transitioned to the U.S. Forest Service tonight.

"The fire is now burning on federal land," Hagemann said, explaining that the hillsides where the blaze is currently burning are part of the Cleveland National Forest.

Fire crews will be working through the night, "and probably through most of tomorrow," Hagemann said.

The cause of the fire is under investigation.

6/2 ORIGINAL POST: A non-injury fire in Temescal Canyon Thursday has scorched nearly 300 acres of brush, as firefighters, hand crews, helicopter teams and air tankers strive to contain it.

The vegetation blaze began in an old orange orchard near Temescal Canyon Road and Trilogy Parkway, west of Glen Ivy Hot Springs and Tom's Farms.

No evacuations were ordered but a housing development -- Trilogy at Glen Ivy  Retirement Community-- is not far from the fire.

Fire officials said the winds were at 9 mph, with gusts of 13 miles per hour.

Fire officials said 180 firefighters, including hand crews,from Cal Fire and the U.S. Forest Service -- were battling the blaze with the help of an air tanker and three helicopters -- two from Cal Fire and one from Orange County fire.

According to Corona fire Engineer Tony Mosqueda, firefighters were working to cut a line around the fire to stop its spread.

Mosqueda said he believed the fire was about 25 percent contained as of 3 p.m.

Chuck Huber, an eight-year resident of the retirement community, said he heard the sirens about 12:20 p.m. -- the fire was reported at 12:22, according to Cal Fire information officers -- but thought the flames were going to Orange County, because the wind was blowing west.

The cause of the fire was under investigation.