SACRAMENTO (CBS13) – Authorities say a man and a woman, both of Grass Valley, have died after a crash in the North Sacramento area early Friday afternoon.

The scene is along westbound Interstate 80 at Marysville Boulevard.

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Exactly what led up to the crash is unclear, but California Highway Patrol confirms that two people were killed after a full-sized pickup truck hauling a trailer went off the roadway and collided into a tree.

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Traffic on westbound I-80 leading up to Marysville Boulevard is backing up to the area of the crash. CHP is advising drivers to use Highway 50 and Business 80 instead.

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The I-80 westbound onramp is currently closed to traffic.