MUSKOGEE COUNTY, Oklahoma - OSBI is investigating after a woman found unresponsive in a Muskogee County Jail cell later died. 

OSBI says jailers found 23-year-old Brandy Edwardsen unresponsive in her jail cell late Friday night. 

Edwardsen was taken to the hospital where she later died, reports say. 

The cause of her death is still under investigation.