DICKINSON, N.D. -- The father of one of three missing college students says they often went star gazing near a lake in southwestern North Dakota and police don't suspect foul play in their disappearances. Kyrstin Gemar's father, Lenny Gemar, told ABC's "Good Morning America" in a telephone interview on Tuesday that the Dickinson State University softball players would hang out by Patterson Lake. Police say 22-year-old Kyrstin Gemar, 21-year-old Ashley Neufeld and 20-year-old Afton Williamson called a friend late Sunday night, and she called 911 to report they needed help. Police Lt. Dave Wallace says water was mentioned but the context wasn't clear. A search was called off Monday when it got dark. It was likely to resume Tuesday.