Police believe weather is to blame for a crash involving dozens of vehicles that forced the closure of a long stretch of Interstate 84 in eastern Oregon.

Oregon State Police Sgt. Kyle Hove says four people were hurt in the Saturday morning crash east of Baker City. He says injuries range from minor to serious, but there were no fatalities.

Hove says it appears black ice played a role in the crash in which about 20 vehicles were damaged, many of them tractor-trailers that spilled their loads. He says about 50 vehicles are trapped at the scene.

Hazardous materials crews were called in to clean up diesel fuel that spilled from trucks' fuel tanks.

The highway is closed in both directions.

Baker City is about 130 miles from Boise, Idaho.

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