Multiple wildfires, including the Palisades Fire and Eaton Fire, are raging across Southern California Thursday, leaving at least 10 dead and burning more than 27,000 acres, officials say. Police have arrested 20 suspected looters.

The death toll has risen – 10 people have been confirmed to have died in the fires – but authorities warn that number will rise. 150,000 people are right now under evacuation orders.

California’s fire agency reported that five wildfires have burned more than 37,000 acres, destroyed 10,000 buildings, and caused at least 11 deaths.

Though the Palisades and Eaton fires are smaller, they rank high in structures burned. Combined, they would equal the second-most destructive California wildfire in history, with more than 9,000 structures burned, according to early Cal Fire estimates. A more detailed analysis of the total number of destroyed structures is still underway.