A 15-year-old boy has died and three other teens have been injured after a man, who was wanted for a stabbing incident at a California Walmart, crashed into pedestrians in front of a high school.

The chaos began at 2:42 p.m. Tuesday when the man allegedly stabbed a store employee inside the Walmart located in Simi Valley and fled the scene in a white Toyota Camry, Simi Valley Police Department said in a statement.

As officers reached the store, witnesses informed them about the suspect's vehicle, which was missing the front bumper, and the license plate number, NBC Los Angeles reported. The employee who had been stabbed was then taken to a local trauma center for treatment and remains in stable condition.

About an hour after the stabbing incident, the Ventura County Sheriff's Department informed Simi Valley police of a collision near Westlake High School at the intersection between Thousand Oaks Boulevard and Lakeview Canyon Road. The rollover crash, which took place at around 3:40 p.m., involved the same vehicle driven by the Walmart stabbing suspect, cops learned.

A 15-year-old male student was killed in the crash while two girls aged 16 and 14 and another 15-year-old boy were injured as they were leaving the school. They were taken to the hospital in various conditions, a spokesperson for the Ventura County Sheriff's Office told KTLA.

The suspect, whose identity has not been released, was arrested at the scene. He was then taken to the hospital after sustaining injuries in the crash.

Two of the injured teens were released from the hospital following treatment while another remains in critical condition, officials reportedly said.

The cause of the crash remains unclear. Meanwhile, police launched an investigation into the motive behind the Walmart stabbing.

Police also learned that after the Walmart stabbing, the suspect went to Camarillo and engaged in a "domestic dispute" with family members. However, no one was injured during the dispute, Ventura County Sheriff's Deputy Ashely Barrios said, as per NBC Los Angeles.

"Some details regarding the investigation cannot be released due to investigative integrity at this time and the multi-jurisdictional nature of this crime," Simi Valley Police Department added in its statement.

Westlake Sophomore Erik Bergh said one of the crash victims was his friend and he also nearly survived the collision.

"I was walking with friends and I think I turned around at that moment and then the next moment, I think I hear like, very loud, higher screeching," he told ABC. "It sounds like a car's on the sidewalk and then I hear people screaming and running and then I turn around and I just see this big car barreling towards me and there's debris flying everywhere."

Conejo Valley Unified School District issued a statement to staff and students following the crash. "Our thoughts and prayers are with these students, their families, friends and the entire Warrior community," it said, according to the outlet.

Representational image (car crash)
Representational image (Source: Pixabay / blickpixel)