Officials say 28-year-old Private Michael L. Osborne Jr. is in fair condition at Stormont-Vail Regional Health Center in Topeka, where he was flown after being stabbed at Casey's General Store in Junction City.
Police say they later pulled over a vehicle matching a description witnesses gave.
They arrested 30-year-old Patti Schofield on suspicion of aggravated battery; and 35-year-old Christopher J. Yarborough and 28-year-old Jennifer Holter on suspicion of aiding and abetting aggravated battery.
All three are from Junction City and are being held at the Geary County Detention Center.
(Copyright 2009 by The Associated Press. All Rights Reserved.)