PALA MESA, Calif. — Two people were killed, including a child, and four others were hurt Sunday evening in a rollover crash on Interstate 15 in Pala Mesa.
California Highway Patrol received reports of a crash in the southbound lanes of Interstate 15 around 3:13 p.m. in the Pala Mesa area.
Officers arrived on the scene and determined the originally reported crash location was closer to the State Route 76 merge of Interstate 15 near Bonsal.
According to the California Highway Patrol, the crash involved a black pickup truck driven by a 23-year-old man, a white Tesla, and a black sedan. The pickup overturned and landed on its roof, and the black sedan was smoking.
According to Captain John Choi with North County Fire Protection District, one adult and an infant died on the scene.
California Highway Patrol later clarified that the "infant" who died on the scene was instead a 4-year-old girl.
California Highway Patrol Officer Hunter Gerber told CBS 8, for reasons unknown; the pickup truck was traveling on the road adjacent to southbound Interstate 15 when the truck left the roadway, traveled through a fence, then entered southbound lanes of traffic.
The truck immediately struck the involved Tesla and a black sedan.
Officer Gerber said, "A very young juvenile" and an adult female died on the scene.
"There is evidence to indicate that DUI was a factor in this crash," California Highway Patrol said in a release.
The pickup truck driver, 23-year-old Erick Arambula from Oceanside, was taken to an area hospital with life-threatening injuries.
Arambula was arrested and faces multiple charges related to felony DUI and gross vehicular manslaughter.
Live freeway cameras provided by Caltrans showed that southbound traffic was being diverted out of lanes and onto the shoulder.
The cause of the crash is under investigation.
Southbound traffic conditions through Pala Mesa were impacted as far north as Murrieta.
WATCH RELATED: Body camera footage sheds light on what happened before fiery McLaren crash