UPDATE (10:06 a.m., April 8):
Sierra Vista Police Department has confirmed with KGUN 9 that the children who died were 7 and 9 and the driver was their mother.
She was in critical condition as of Tuesday night, according to SVPD.
UPDATE (8:11 a.m., April 8):
In a meeting of the Sierra Vista Unified School District Governing Board, it was confirmed that the two juveniles were students at Bella Vista Elementary School.
UPDATE (12:32 p.m., April 7):
The crash that partially closed Highway 90 Tuesday morning resulted in the deaths of two juveniles and sent an adult to the hospital with life-threatening injuries.
According to a news release from Sierra Vista Police Department, the crash involved a white sedan, a white pickup truck pulling a trailer and a gold sedan.
The white sedan was traveling northbound on Coronado when it ran the red light and struck the truck, which was driving eastbound on Highway 90, the news release said.
The crash caused both vehicles to swing around, hitting the gold sedan, which was stopped in the westbound left turn lane, to turn from Highway 90 onto Coronado Drive.
The truck rolled over on its side and was on fire when emergency services arrived.
The passenger of the pickup truck was transported to the hospital with non-life-threatening injuries. All three occupants of the white sedan were transported to the hospital with life-threatening injuries. The two juvenile occupants died at the hospital. The adult was transported to a Tucson hospital for trauma care.
An early investigation indicates the driver of the white sedan may have had a medical episode, which led to the crash.
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Highway 90 is closed in Sierra Vista following a crash at Coronado Drive.
Traffic is being diverted. According to a social media post from Sierra Vista Police Department, drivers should reroute to Seventh Street if they are traveling east on Highway 90 and reroute to Martin Luther King Jr. Parkway if traveling west.
No timeline on reopening was given.