CHP has recommended possible charges after a paraquat spill in Dorris shut down Highway 97 and triggered a shelter-in-place order. Investigators say the tank came loose from a truck headed to a spraying job in the Shasta Valley.

A toxic chemical spill in Dorris, California triggered a shelter-in-place order, highway closure, and emergency response as crews worked to neutralize paraquat, a highly dangerous herbicide. Officials say the scene is now safe, but caution remains in effect.