1,500 tons of liquid nitrogen fertilizer spilled in Red Oak, Iowa, into the Missouri River, causing environmental damage and fish kill.

1,500 tons of liquid nitrogen fertilizer spilled in Red Oak, Iowa, flowed into the Missouri River, causing environmental damage and a fish kill in the East Nishnabotna River. The spill began when a valve on a storage tank at agricultural company New Cooperative either broke or was left open overnight. Efforts to stop further flow into the river and assess the damage continue.