Twelve Union Pacific Train Cars Derail In Rogers County

Twelve cars of a southbound Union Pacific freight train derailed just before midnight near Inola in Rogers County. 

The derailment occurred along state Highway 88 near U.S. Highway 412. 

Union Pacific is investigating what caused the derailment which sparked two small grass fires. Both fires were quickly extinguished.  

The Oklahoma Department of Transportation says one lane of state Highway 88 has reopened following the derailment.  It is expected to remain one lane through Tuesday evening.

ODOT says flagmen and the Oklahoma Highway Patrol are directing traffic and drivers are urged to use caution and expect delays.

Union Pacific tells News On 6 one car contained coal, two contained scrap metal, five contained flour and four were empty.   

Initial reports indicated a problem with some of the cars' wheels, but Union Pacific is now saying it's not sure what caused the derailment. 

The rail line between Coffeyville, Kansas and Muskogee is shut down because of the derailment.