All southbound lanes of Interstate 5 in Chula Vista have reopened following a fatal wrong-way multi-car crash on Saturday morning.

California Highway Patrol got a call at around 5 a.m. saying a wrong-way driver was going northbound on southbound lanes of the I-5, at State Route 905. CHP then received another call saying there was a car collision near L street, CHP officer Salvador Castro said.

Two people are confirmed dead, but CHP did not specify which car occupants had died. Two people sustained major injuries and were transported to UC San Diego Medical Center.

At least seven cars were involved in the crash, CHP said.

All lanes of SB I-5 were closed for several hours at L street and traffic was being diverted off J Street/ Marina Parkway exit.

SB I-5 at L St, all lanes have re-opened to traffic. #SDCaltransAlert — Caltrans San Diego (@SDCaltrans) February 1, 2020

An investigation is underway to determine who the wrong-way driver is, CHP said.

No other information was available.

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