A baby boy was killed and his parents and two other children were injured when a vehicle crashed into a utility pole and rolled over in Placentia on Monday, authorities said.
The Orange County Fire Department responded to the collision at West Orangethorpe and Ohio avenues about 10:10 a.m., Capt. Steve Concialdi said.
Placentia police said a family of five was traveling in a 1997 Chevrolet Suburban that veered off the roadway, jumped a curb, crashed into a utility pole, rolled over and came to rest on its roof.
A 7-month-old boy, who was properly strapped into a car seat, was killed, authorities said. The vehicle had collapsed on the car seat, police said in a news release.
The 26-year-old mother was driving, and the father was in the front seat. The two injured children, a 5-year-old girl and 3-year-old boy, were in the rear but were not in car seats, authorities said.
California law requires children under age 8 and under 4 feet 9 inches tall to be in a child booster or safety seat.
The infant was dead at the scene, and the four other patients were taken to UC Irvine Medical Center, a police tweet stated. A photo showed the red SUV on its roof, which was crushed.
It appeared no other vehicles were involved. The cause of the crash was under investigation.
Southern California Edison was working to replace the utility pole, which was severed at its base, causing downed power lines. An unknown number of homes and businesses were without power along Orangethorpe Avenue, which was closed to traffic for several hours.