According to Clarion-based State Police, a Stat MedEvac helicopter has been called to the scene for the accident that happened around 7:35 a.m. on Sunday.
Traffic is being detoured at Exit 64, then to Greenville Pike north into Clarion, then Route 322 East to Exit 70. Traffic is also being rerouted to Route 28 to New Bethlehem and north to Brookville, police say.
Local fire departments and PennDOT assisted with traffic control.
The names of the occupants involved was not provided.
No other information has been released.
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