WESTFIELD, Ind. -- A crash on US 31 has slowed traffic in the area near 161st Street.
Police say it was a single-vehicle crash in the northbound lanes.
The severity of injuries is unclear, but a medical helicopter has been called to the area for one person.
Traffic is being diverted to the 161st Street exit ramp, where cars are then getting back on US 31.
Heavy traffic on US 31 NB near 146th street. Traffic backed up from a crash at 161st St. Seek alternate routes
— Sgt. John Perrine (@ISPIndianapolis) March 23, 2016
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