Cosumnes Fire Chief Tracey Hansen told The Sacramento Bee at least two of the injured were critically hurt in the crash, which occurred on Interstate 5 in Elk Grove.
Emergency crews at the scene told the Bee it appeared a sport utility vehicle driving northbound on I-5 south of Sacramento went out of control and careened into the northbound lanes, striking two oncoming cars.
The accident, which was under investigation, resulted in the full closure of northbound I-5 and a considerable traffic tie-up, the newspaper said.
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