Homeowners were evacuated after a truck carrying ammonia lost control.
It happened at the intersection of Bennington and State Road in Shiawassee Township on Wednesday.
Michigan State Police Sgt. Bruce Payne said a farmer lost control of his pickup truck, causing a 1,000 gallon tank of anhydrous ammonia to tip and spill.
Payne said at least 800 gallons were spilled. The area was immediately evacuated while a Hazmat team secured the scene.
The incident has been cleared.
Three MSP troopers and three firefighters were examined and released from Memorial Hospital in Owosso for possible exposure, Payne said.
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