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

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

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

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

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.

A wind-driven wildfire charred dozens of acres in the sparsely developed northeastern reaches of San Diego County, damaging structures and forcing pre-dawn evacuations before crews could gain the upper hand on the flames Wednesday.

Forward progress was stopped on the Lilac fire around 10 a.m. It was one of three fires in North County early Tuesday.

The bushfire started northwest of Downtown Los Angeles and spread from Los Angeles County to Ventura County and prompted evacuations.

A vegetation fire broke out in Bonsall in North San Diego County, damaging multiple structures early Tuesday morning.

More than 50,000 are under evacuation orders or warnings as a new wind-driven wildfire spreads in the mountains north of Los Angeles. The Hughes Fire broke out late Wednesday morning.