SEATTLE (AP) — The Latest on a crane collapse in Seattle (all times local):

11:30 a.m.

Seattle Pacific University officials say one of its students was among the four people killed when a construction crane fell from a building and crashed onto one of Seattle's busiest streets.

The university says in a statement that Sarah Wong was a freshman who intended to major in nursing and lived on campus.

The university says Wong was in a car when the crane fell from a building under construction on Google's new Seattle campus onto Mercer Street Saturday afternoon.

Tim Church, a spokesman for the Washington Department of Labor & Industries, says the agency formally opened an investigation into four companies — general contractor GLY, Northwest Tower Crane Service Inc., Omega Rigging and Machinery Moving Inc. and Morrow Equipment Co. LLC. Church said he didn't know where the companies are based.

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10:40 a.m.

Washington state labor investigators are at the scene where a construction crane collapsed in Seattle and killed four people, including two ironworkers who had been inside the crane.

The crane fell from atop a building on Google's new Seattle campus Saturday afternoon, striking six cars and injuring four people.

Of the injured, a 28-year-old man remained hospitalized in satisfactory condition Sunday at Harborview Medical Center. A mother and her infant were released from the hospital Saturday. The fourth person was treated at the scene and released.

The names of the four who died are expected to be released Monday.

Tim Church, a spokesman for the Washington Department of Labor and Industries, says the tower crane was being disassembled when it fell from the building.

Church says the investigation into the crash will likely take months.

A stretch of Mercer Street remained closed Sunday.

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12:30 a.m.

Four people were killed when a construction crane crashed down onto cars on one of Seattle's busiest streets.

The crane that fell from a building on Google's new Seattle campus Saturday afternoon struck six cars on Mercer Street near Interstate 5 in the South Lake Union area.

Fire Chief Harold Scoggins says one female and three males had died by the time firefighters had arrived.

Authorities say two of the dead were ironworkers who had been inside the crane while the other two were people were in cars.

Seattle Mayor Jenny Durkan says a 25-year-old mother and her 4-month-old daughter were in a car that was smashed by the crane on its passenger side, and both managed to escape with only minor injuries.