MUSKOGEE COUNTY, Oklahoma - The Oklahoma Highway Patrol says a 59-year-old Siloam Springs, Arkansas woman died when she crashed her car into a water tank on the side of the highway.

The crash happened at the Muskogee-Wagoner county line Friday morning. 

Troopers said Janice Mamahon was northbound on Highway 64 when her 2002 Chevrolet Cavalier left the road for an unknown reason and struck a large empty metal tank at 7:14 a.m. 

The OHP says no other vehicles were involved in the crash.