Multiple brush fires erupted in San Diego’s North County early Tuesday morning, prompting a fast response from firefighters and mandatory evacuations.

"The fire is growing with a moderate rate of spread and structures are threatened," Cal Fire said as it issued evacuation orders.

At least 28 people are believed to be dead and more than a dozen others remain unaccounted for as multiple wildfires rage across Southern California.

Two new fires ignited in San Diego County on Tuesday, as firefighters continue fighting blazes further north in Los Angeles.

The fires come as San Diego County mountains and valleys, along with other parts of Southern California, remain under a red flag warning.

The Hughes Fire was first reported shortly after 10:30 a.m. along Lake Hughes Road, near Castaic Lake and the 5 Freeway, according to Cal Fire.

Six wildfires are burning in Southern California, according to the California Department of Forestry and Fire Protection (Cal Fire). Earlier this month, two significant wildfires ignited in Los Angeles and quickly grew to encompass thousands of acres.

A wind-driven wildfire charred dozens of acres in a sparsely developed area south of Pala Mesa on Wednesday, damaging structures and forcing pre-dawn evacuations before crews could gain the upper hand on the flames.

As firefighters descended on the Lilac Fire in Bonsall early Tuesday, several crews helping battle the blaze were from outside San Diego County and even California, with many hailing from more than 1,

A second day of windy and dry conditions is in store for Southern California. Winds have picked up and are expected to continue through Tuesday morning, raising the risk of new wildfires sparking.

Thousands of firefighters have been battling wildfires across 45 square miles of densely populated Los Angeles County. The two largest fires, the Palisades Fire in Pacific Palisades and the Eaton Fire near Pasadena, remain active.