Two critically injured in illegal fireworks explosion in Hayward

In Hayward, California, an explosion occurred due to the suspected manufacturing of illegal fireworks inside a residential home. The incident took place around 12:20 p.m. on Thursday, July 3, 2025, near Mandarin Avenue and Sumatra Street. Upon arrival, law enforcement and firefighters discovered a man with injuries consistent with a fireworks-related explosion. Shortly thereafter, a second explosion prompted the evacuation of nearby residences. The damage was primarily contained to the garage area, although the consequences of this incident were severe for those directly involved. Two individuals from the home were reported in critical condition and required hospitalization. Multiple emergency crews, including the Hayward Police Department and the Alameda County bomb squad, responded to the scene to address the potential hazards posed by remaining explosive materials. Photos and reports from witnesses indicated that there were multiple explosions, with at least three prominent detonations being audible. Firefighters managed to contain the fire, which was limited to the garage, thus preventing further damage to the house and surrounding properties. Authorities are investigating the circumstances surrounding the manufacturing of illegal fireworks at the property, as preliminary findings suggest that the residents may have been involved in illicit activities related to fireworks production. The Hayward Police urged the public to remain clear of the area while ongoing investigations were conducted. As of Thursday afternoon, those injured were reported to be stable but still in critical condition. Separately, in Los Angeles, a residential fire related to active fireworks resulted in another severe incident. At approximately 9 p.m. on the same day in the Pacoima neighborhood, firefighters encountered a blaze involving several homes due to fireworks igniting within a detached garage. This incident resulted in a 33-year-old woman being hospitalized in critical but stable condition, while a 68-year-old woman experienced some smoke inhalation. Over 100 firefighters were dispatched to control the situation, which they accomplished within an hour. Both incidents highlight the severe risks associated with the illegal use and manufacturing of fireworks, raising concerns among local authorities about safety regulations and enforcement against such activities. In light of these events, community awareness and education regarding the dangers of illegal fireworks have become increasingly urgent to prevent similar occurrences in the future.