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PORTLAND -- A Canadian tour bus operator and the State of Oregon have been named in a lawsuit related to a deadly Eastern Oregon bus crash.

On Dec. 30 of last year, a tour bus hit a patch of ice on Interstate 84 outside of Pendleton and careened down a cliff, killing nine people and injuring 38.

The tour company, Mi Joo Tour & Travel of Vancouver, British Columbia has since ceased operations.

Background: Nine Killed in Oregon charter bus crash

On Monday, a lawyer representing the estate of two of the deceased and 10 of the injured passengers filed a suit seeking $700 million. The suit accuses Mi Joo of negligence. The state is also named in the suit for not installing enough safety barriers on the freeway.

Two other passengers filed a suit against Mi Joo in January of 2013 claiming the driver had worked 90-100 hours over an 8 day period without a break.

The Oregon Department of Transportation was also sued in April of 2013 by another survivor and the estates of three other people killed in the crash.

Photos: Scene of deadly I-84 bus crash

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