Indiana ? Graduation festivities got under way at the University of Notre Dame on Saturday — as well as another day of demonstrations over President Barack Obama’s appearance today.

University spokesman Dennis Brown said there were no reports of protests on campus at any of the ceremonies by various schools, centers and institutes. For the most part, the only difference on campus was the heightened security for Obama’s visit, he said.

Bishop John D’Arcy, whose Diocese of Fort Wayne-South Bend includes the Notre Dame campus, helped students protesting Obama’s visit kick off an all-night prayer vigil Saturday night.

About 150 people, including students, parents and alumni, prayed with D’Arcy for three things: that Obama will change his support of abortion rights and embryonic stem-cell research, that people throughout the world gain a greater respect for life and that Notre Dame and other Roman Catholic universities will more fully embrace their Catholic identity.