4,800 gallons of 'unknown substance' spills into Yough River when tractor-trailer flips over

Truck crash in Elizabeth Twp

ELIZABETH TOWNSHIP, Pa. — Nearly 4,800 gallons of an unknown substance spilled into the Yough River after a tractor-trailer overturned.

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Emergency crews were called to the scene in the 2300 block of Douglas Run Road near Nichols Hill Road in Elizabeth Township around 9:30 p.m.

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The driver was flown to the hospital, according to our news partners at TribLIVE.com.

It's unclear what exactly spilled from the truck.