Greencastle, In. – Yesterday afternoon a crash on U.S. 231 north of Greencastle resulted in 4 people being airlifted to an Indianapolis Hospital.  The Indiana State Police say that a Indiana Department of Corrections van was hit by a pickup truck that apparently crossed the center line.  In the van were two Indiana State Correctional Officers and an inmate.  All 3 were seriously injured.  The Driver of the pickup was also seriously injured.  The names of the crash victims have not been released but State Police say all 4 were seriously injured.