The search went on in North Dakota Tuesday for three members of Dickinson State University's softball team who have been missing for nearly two days.

Afton Williamson, 20, of Grossmont, Calif.; Kyrstin Gemar, 22, of Lake Elsinore, Calif.; and Ashley Neufeld, 21, of Brandon, Manitoba, in Canada, were last heard from Sunday night. A friend said she got a cell-phone call, and described them as hysterical and talking about water, KXMB-TV in Bismarck reported.

Lenny Gemar told ABC's "Good Morning America" his daughter and her friends liked to go out in the evening to look at the stars and talk at a place near a lake.

"It's a pretty small town, doesn't have a real active nightlife," he said of Dickinson in southwest North Dakota, where the university is located.

Gemar said there has been no suggestion his daughter and her friends met with foul play.

Stark County Sheriff Clarence Tuhy told KXMB that since the calls Sunday night, the women's cell phones go to voice mail. He said they were in a white Jeep Cherokee with California tags bearing the number 3UBN521.