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CARLSBAD, Calif. – A driver was arrested Wednesday morning on suspicion of drunk driving for his role in a crash on northbound Interstate 5 that killed one person and badly wounded several others.

About 2:45 a.m., California Highway Patrol officers say Oceanside resident Isidrone Martinez was driving a Honda Civic northbound on I-5, south of La Costa Avenue, with four passengers aged between 20 and 22 years old. According to CHP, Martinez, 20, was driving through a Caltrans construction zone with two closed northbound lanes when he veered to the right into the closure.

When he veered back to the left, Martinez’s Civic crashed into the right rear of a Toyota Prius driven by a 33-year-old San Diego resident with a 33-year-old male passenger, CHP said.

Following the collision, officers say his Civic veered again to the right up an embank, causing the vehicle to roll over an unspecified number of times. It was that which caused a 20-year-old male passenger to eject from the Civic. The passenger, whose name was not released, was pronounced dead at the scene.

Martinez was hospitalized with “major life-threatening injuries,” according to CHP. He faces multiple charges related to the crash, including felony DUI causing death. His other passengers, two 20-year-olds from Oceanside and a 22-year-old Valley Center woman, also were transported to area hospitals with major injuries.

Both the driver and passenger in the Prius suffered minor injuries, officers said.

The result of the crash snarled traffic on I-5 for hours with Caltrans closing a portion of the freeway until about 8:20 a.m. In that time, drivers were detoured around the area via La Costa Avenue.

Anyone who witnessed the crash as well as those who may have hit debris from it were asked to contact CHP’s Oceanside Area office at 760-643-3400.

City News Service contributed to this report.