UPDATE: 9 a.m.
CHP reopened all lanes of the northbound 5 freeway at 7 a.m.
During the Castaic Fire, all four northbound lanes of the freeway were closed at Lake Hughes Road. At around 6:45 p.m., officers reopened three of the four lanes to drivers.
UPDATE 5:38 p.m.
The Castaic Fire is up to 25 acres and forward progression has stopped, according to officials with the Los Angeles County Fire Department.
A 20-acre brush fire is currently burning on both sides of the 5 freeway near Lake Hughes Road in Castaic.
The vegetation fire, believed to be started by a lightning strike, broke out at 4:32 p.m.
Named the “Castaic Fire,” the brush fire quickly grew to a second alarm brush fire and burned a total of 20 acres as of 5 p.m., according to the Los Angeles County Fire Department.
No structures are currently threatened and none of the fire is contained at this time.
The California Highway Patrol also closed all lanes of the northbound and southbound 5 freeway at Lake Hughes Road.
CHP Officer Eric Priessman said it is unknown when the lanes might reopen.
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