This browser does not support the Video element.
HOLTVILLE, Calif. - Officials said 13 people were killed and several others were injured when a Ford Expedition with 25 passengers collided with a semi-truck in Imperial County near the US-Mexico border on the morning of March 2.
Twelve people inside the SUV, including the 28-year-old driver, were pronounced dead at the scene. Another victim died at a local hospital, officials said.
California Highway Patrol Border Division Chief Omar Watson said the driver was believed to be from Mexicali.
Hours after the crash, ICE confirmed with FOX 11 that federal agents were investigating for possible human smuggling.
RELATED: Deadly crash involving SUV carrying 25 people prompts human smuggling investigation, ICE confirms
A spokesperson with ICE issued the following statement:
"Special Agents from Homeland Security Investigations San Diego responded to the scene of today’s fatal crash in El Centro, California, and have initiated a human smuggling investigation. The investigation is ongoing and no further details are available at this time."
The day after the crash, Border Patrol officials said the SUV entered the U.S. through a hole cut into Southern California’s border fence with Mexico.
RELATED: SUV involved in deadly Imperial County crash came through hole in border fence
The mass casualty crash was reported around 6:15 a.m. Tuesday in the city of Holtville on Highway 115 located 125 miles east of San Diego, according to Battalion Chief Juan Rodelo with the City of Imperial Fire Department.
Watson said the big rig hauling two trailers was traveling northbound and the maroon Expedition was traveling westbound when the truck collided with the left side of the SUV at the intersection of Highway 115 and Norris Road.
It was unclear if the SUV came to a stop at the stop sign on Norris Road, Watson said. He also clarified that the SUV was not being chased by law enforcement.
This browser does not support the Video element.
U.S. Customs and Border Protections were at the scene to assist with translating and lifesaving efforts.
The 69-year-old driver of the big rig was taken to a local hospital with serious injuries. He was later identified as Joe Beltran of El Centro.
Other details of the crash reported by the CHP were grim.
Chief Watson said some victims were ejected onto the pavement, some died inside the SUV, while some who survived were able to pull themselves out.
Those who survived suffered minor to severe injuries and are between the ages of 16 and 55 and those who died were in their 20s through 50s.
"Our focus right now is the collision itself," Chief Watson said.
Watson added that the Ford SUV isn’t meant to hold more than 8 people. The investigation also revealed seats were removed from the Expedition.
RELATED: Questions remain on how 25 people fit inside Ford Expedition involved in Imperial County crash
"It’s unfortunate that that number of people were put in that vehicle because there are not enough safety constraints to keep them safe," Chief Watson said.
The Consulate of Mexico in Mexicali said 10 of the 13 people killed in the crash were Mexican citizens. That information does not necessarily mean that the SUV occupants were undocumented or entered the United States illegally.
This browser does not support the Video element.
Two of the three victims taken to Pioneers Medical Center were then transferred to UC San Diego Medical Center due to the severity of their injuries.
Authorities later confirmed the surviving victims were residents of Mexico and Guatemala and were being treated for moderate to serious injuries at Southern California hospitals.
RELATED: Hospitalized victims of Imperial County crash identified as residents of Mexico, Guatemala
The investigation is ongoing.
Get your top stories delivered daily! Sign up for FOX 11’s Fast 5 newsletter. And, get breaking news alerts in the FOX 11 News app. Download for iOS or Android.