One person is dead after a house fire in Simi Valley, which authorities believe may have been caused by a possible explosion Thursday afternoon. The Ventura County Fire Department said they received calls around 11:48 a.m. about a possible explosion that could have been caused by fireworks on the 1600 block of Edmund Street.

California has seen a spate of accidental fireworks explosions leading up to the Fourth of July with a Wednesday morning detonation killing 1 in a Simi Valley home and a similar incident critically injuring two people in a Bay Area residence.

A person is dead after fireworks detonated in the garage of a house in Simi Valley on Thursday, sparking a fire and sending a large black plume of smoke into the air. Sandra Mitchell reports July 3, 2025.

More than 130 firefighters battled a fire involving fireworks explosions that engulfed four homes in Pacoima and critically injured a woman on Thursday night, authorities said.

At least one person was hospitalized and four homes were burned during a fireworks-related fire in Pacoima Thursday night, according to the Los Angeles Fire Department. LAFD said it started at roughly 9 p.