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Explosion at liquified natural gas plant near Tri-Cities injures 4

A line of emergency vehicles line a roadway in sight of the Williams Northwest Pipeline plant in the distance, Monday, March 31, 2014, in Plymouth, Wash.  Company spokeswoman Michele Swaner says all employees were evacuated and accounted for after an explosion Monday morning at the plant, where liquefied natural gas is converted into vapor. She says one employee was burned but will recover. (Bob Brawdy / The Tri-city Herald)

PLYMOUTH, Wash. (AP) — Authorities say four workers were injured and about 200 residents were evacuated after a large explosion and fire Monday morning at a natural gas processing plant in the eastern Washington town of Plymouth.

Benton County Sheriff Steven Keane says the fire from the 8:20 a.m. blast has been put out.

He says the explosion sent a mushroom-shaped cloud towering into the air, and shrapnel punctured a liquefied natural gas tank. Some gas leaked but did not ignite.

Deputies went door to door throughout Plymouth, along the Columbia River, and evacuated people in a 2-mile radius.

Buses were provided for those without cars, and a shelter was set up across the river in Oregon at the Umatilla County Fairgrounds. As part of the evacuation, Highway 14 and railroad tracks were shut down.