Initial reports of an "active shooter" after the blaze prompted a massive police response.
The Los Angeles Police Department was on citywide tactical alert after firefighters extinguished the blaze at a two-story home in the 15400 block of Orchard Avenue.
There were no immediate reports of injuries in the fire or the shooting.
#BREAKING LAPD choppers overhead active shooter situation in Gardena area; officers have shut down Redondo Beach Blvd at Orchard Ave... man held up in house following fire. @ABC7 tune in! https://t.co/a8eFAqjJ8p pic.twitter.com/Eq4Y2ON30i— Marc Cota-Robles (@abc7marccr) April 24, 2018
According to the LAPD, the suspect was barricaded inside of a home. Police and sheriff's deputies evacuated the area as the standoff continued.
DEVELOPING: More details will be added to this report as they become available.