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.

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

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.

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

The Palisades and Eaton wildfires continue burning in the Los Angeles area that left parts of Southern California with devastating fire damage.

The Palisades Fire, which started on Jan. 7, has burned 23,713 acres and has destroyed 5,828 structures, including homes and businesses, according to an update from Cal Fire on Monday. At least 10 fire-related deaths have been reported in the Palisades Fire.

San Diego County is the latest to get hit with wildfires, with the Pala, Riverview and Lilac blazes breaking out Tuesday.

Santa Ana winds will continue whipping through Southern California through Thursday, sparking fears that progress made fighting wildfires that have scorched over 40,000 acres and left 28 dead could be reversed and more blazes could break out.

A new wildfire, named the Hughes Fire, has erupted in Los Angeles, prompting evacuation orders for over 50,000 residents. The blaze erupted on Wednesday morning near Lake Castaic and has rapidly spread across 9,400 acres with no containment reported by the California Department of Forestry and Fire Protection (CAL Fire).

New wildfire scorches 3,750 hectares (9,266 acres) near Castaic Lake, about 80 km (50 miles) north of Los Angeles.

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.