IRVINE – All lanes on the southbound I-405 freeway were reopened after a pedestrian wandered into traffic, was struck by a box truck and died around 6 a.m. Thursday, according to the California Highway Patrol.

A SigAlert was issued for the southbound I-405 at 6:17 a.m. and traffic was diverted onto the 133 bypass while the coroner and officers conducted their investigation.

Lanes were reopened around 10:30 a.m.

911 callers told CHP dispatchers that a woman wearing a blue shirt was walking northbound along the southbound right shoulder, close to lanes, around 6:11 a.m., CHP officer Monica Posada said.

Moments later, callers reported that the person walked into lanes and had been hit.

“It was foggy,” CHP officer Tino Olivera said. “When she got to the No. 3 lane, she was hit by a white box truck.”

The woman was pronounced dead at the scene.

The box truck driver remained at the scene and was cooperating with investigators.

“He’s shaken up, but all right,” Olivera said.

No citations have been issued or arrests made.

It was unclear what the person was doing on the freeway, Posada said. No disabled vehicles were seen in the immediate area.

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