COLUSA (CBS13) – A crash just south of Colusa has claimed the lives of four people, according to California Highway Patrol.

The crash happened near State Route 45 and Niagara Avenue just after 3 p.m. Saturday. According to CHP, a sedan carrying five people ran off the roadway on the right side of the road and went down an embankment, overturning into a canal.

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Most of the car was submerged in about three feet of water, authorities said. Four people, who reportedly worked as farmers in the area, were killed in the crash. A fifth person was taken to the hospital with minor injuries, according to CHP.

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It is unclear why the car veered off the road. Investigators said that there were no skid marks to show the driver hit the brakes.

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The victims are not said to be related, but it appears that they worked together.