-- A woman who drove into a soccer field and killed two people in Wichita, Kansas last month was apparently asleep before the incident and won't be criminally charged, authorities said Thursday.

Wichita Police Chief Joe Sullivan and Sedgwick County District Attorney Marc Bennett briefed reporters about their investigation into the Oct. 17 incident at the Stryker Sports Complex where the unidentified woman's truck drove onto the field and struck several people, including kids.

Cole Adrian, 6, and Nicholas Schafer, 35, were killed and 11 others were injured in the incident, investigators said.