TULSA, Okla. - Troopers say a semi carrying hazardous materials crashed on the Broken Arrow Expressway Tuesday near downtown Tulsa.
The semi reportedly overturned near Boston Avenue around 1 p.m.
The collision has the exit ramp from the the Broken Arrow Expressway westbound exit to Highway 75 blocked.
Officials at the scene said the driver was taken to an area hospital in an unknown condition.
Troopers say the semi was carrying hazardous material, and that material is leaking. They say a fire started on some nearby grass when the semi first crashed, but it was quickly extinguished.
Troopers say that the material is identified by Placard #1824, which indicates a sodium hydroxide solution.
According to the National Oceanic and Atmospheric Administration, the solution is highly corrosive.
The Tulsa Fire Department's HAZMAT team responded to the scene to help with cleanup.
Troopers believe the crash happened because the driver was traveling at an unsafe speed around the curve.
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