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A nearly 8-acre brush fire in Santa Clarita prompted the temporary closure of the northbound 5 Freeway amid Tuesday afternoon rush hour.

The Calgrove Fire was burning along the northbound freeway south of Calgrove Boulevard, according to a brief emergency notification sent out by the Los Angeles County Fire Department just before 4 p.m.

Northbound lanes were closed at the busy interchange with the 14 Freeway, according to the Fire Department, which asked people to avoid the area. The California Highway Patrol issued a SigAlert.

The No. 1 and 2 lanes reopened soon after the SigAlert was issued, according to CHP’s Newhall Division. The No. 3 and 4 lanes reopened shortly before 5 p.m.

The fire was reported about 1 mile south of Calgrove around 3:30 p.m., according to CHP’s traffic incident log.

About 115 firefighters responded. Forward progress of the blaze was stopped within an hour, according to Fire Department tweet.

The fire had burned 7.8 acres and was 100 percent contained by 5 p.m.

“Fall season will bring Santa Ana winds,” the Fire Department warned. “STAY ALERT.”

*UPDATE* #CALGROVEIC #SANTACLARITA Foward progress stopped. Line around 50% of fire — L.A. County Fire Department (@LACoFDPIO) September 20, 2016

*Brush Fire* #CALGROVEIC #SANTACLARITA 5 acre brush fire. We have 115 fire personnel on scene. — L.A. County Fire Department (@LACoFDPIO) September 20, 2016

^SIGALERT UPDATE IN SANTA CLARITA: NB I-5 AT CALGROVE BLVD- NB I-5 ALL LANES EXCEPT THE #1 & #2 BLOCKED UNTIL FURTHER NOTICE DUE TO FIRE — CHP PIO – LA County (@CHPsouthern) September 20, 2016

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