Santa Ana resident Alfonso Guzman, the driver, was killed, as was passenger Guillermina Millan-Guadarrama, also a Santa Ana resident.
Three children remained hospitalized Monday in the intensive-care unit at University of California-Irvine Medical Center. A 2-year-old girl was in critical but stable condition. A 10-year-old girl and a 6-year-old girl both were in stable condition.
The car they were all riding in crashed on a trip to church Sunday.
The passenger was the mother of the three girls. The other adult was a male friend who was driving the car. Police say the driver was speeding when he tried to avoid a car waiting to make a turn.
The accident happened just after 7 p.m. at 5th and English streets in Santa Ana. Responding officers found an upside-down car in the front yard of a residence at 2026 W. 5th St.
The cause of the accident was under investigation.
The crash damaged a power pole, causing lines to be downed and a power outage in the area that was affecting about 1,500 customers.