RICHLAND, Wash. -

Authorities say nine people were hurt in a pile-up they estimated involved 50 cars on Interstate 82 during a dust storm Saturday afternoon.

The Tri-City Herald reports that the nine people were taken to nearby hospitals, but none had life-threatening injuries.

Capt. Devin Helland of Benton Fire District 1 says most of the crashes were rear-end collisions and spin-outs that were hit by other vehicles as dust reduced visibility. The collisions happened between the Highway 395 entrance to Interstate 82 just south of Kennewick and the Locust Grove overpass.

The crashes started around 3:30 p.m. as dust blew from west of the interstate. Law enforcement officers and the Washington State Department of Transportation blocked traffic from entering Interstate 82.

The highway reopened a few hours later.