Wildfires are rampaging across Los Angeles County this week. Wildfires continue to rage in Los Angeles — and could become the costliest blazes in US history, according to a JPMorgan research note. The Los Angeles downtown skyline in the distance was surrounded by smoke and haze on Thursday morning. AP Photo/Damian DovarganesMeanwhile, 20 people have been arrested on suspicion of looting in areas affected by the fires, Los Angeles County Sheriff Robert Luna said at Thursday's briefing. ADHurst FireThe Hurst fire burned in the hills above the Sylmar area of Los Angeles on Wednesday.

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Persons: Jimmy Bhullar, Bhullar, Mario Tama, Nathan Hochman, Hochman, Rodney King, Damian Dovarganes, Robert Luna, Quiñones, Brian van der, Kristin Crowley, Paris Hilton, Billy Crystal, Ethan Swope, Eaton, Anthony Marrone, Hurst, Myung J, Chun, LAFD's Crowley, Crowley, Jason Armond, Crews, Lidia, Marrone Organizations: Morgan, Getty, Los Angeles, Northridge Earthquake, National Weather Service, AP, city's Department of Water, Los Angeles Times, . Los Angeles City Fire, Paris, Eaton, Angeles National Forest, Fire, Firefighters, Hollywood, Woodley Locations: Los Angeles, Palisades, LA, LA County, Ventura County, Los Angeles County, Santa Monica, Pasadena, Altadena, San Fernando Valley, CalFire, Studio, Acton, Antelope