One man was rushed to the hospital and 20 homes were evacuated after an apparent fireworks explosion near the City of Industry on Thursday night.
The Los Angeles County Sheriff's Department said the blast happened at about 7 p.m. near the 1000 block of Bunbury Drive.
The Los Angeles County Fire Department and deputies conducted evacuations at nearby residences "out of an abundance of caution."
A man suffered injuries to his hands and was listed in critical condition, according to deputies.
Deputies added that firefighters found explosives in the area when they arrived and evacuated 20 homes. The Red Cross has set up a center at 1500 Workman Mill Road for evacuees.
After ensuring the safety of the community, all evacuees were allowed to return home.