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The four people killed in a single-car crash Saturday in Manteca have been identified as a Livermore couple and two of their children. Three other children survived.

The San Joaquin County coroner’s office on Wednesday identified the four as Arriaga Bonifacio Negrete, 44; Liliana Guerrero Mendoza, 40; Jorge Negrete Guerrero, 12; and David Negrete Guerrero, 4 months.

The crash happened around 10 p.m. Saturday on Highway 120 in Manteca, the California Highway Patrol said. The family’s Toyota Sienna minivan, westbound on the highway, veered into the grass median strip and dropped into an underpass, where it flipped and caught fire.

More than 15 people who saw the wreck ran to pull occupants from the van, Sacramento TV station KOVR reported.

The survivors were two girls, ages 6 and 14, and a boy, age 9. All were taken to hospitals; the youngest, suffering major injuries, was admitted to UC Davis Medical Center, the CHP said.

The couple’s oldest child, 17-year-old Natalie Negrete, told TV station KXTV that the family was returning from a quinceañera. She had skipped the trip because she was ill.

It was the second quadruple-fatal crash in the Modesto area in four days. On Tuesday, April 9, a head-on collision in the community of Del Rio killed all occupants of two cars: a 60-year-old Linden woman and her 1-year-old granddaughter, and a 22-year-old man and a 19-year-old woman, both from Merced.

A GoFundMe account has been set up for the Negrete Guerrero family.