7 treated after ammonia leak at Ore. potato plant

Published:

 

BOARDMAN, Ore. (AP) -- Authorities say seven people suffering from exposure to an ammonia leak at a potato plant in Boardman have been released from the hospital.

The leak was contained before midnight Tuesday at the ConAgra Foods Lamb Weston plant, which was evacuated.

The Morrow County sheriff's office says the seven had respiratory distress and nausea.

It said Wednesday that a cause for the leak had not been pinned down.