Students at La Salle University in Philadelphia say exotic dancers were part of a professor's extra-credit symposium on business ethics.
Officials at the private Roman Catholic school say they are investigating the March 21 seminar, which ended abruptly after the business school's dean showed up.
Students say the dancers kept their clothes on. Sophomore Brad Bernardino tells WPVI-TV that one dancer gave a lap dance to assistant management professor Jack Rappaport.
Rappaport did not respond to an emailed request for comment.
La Salle spokesman Joseph Donovan would not comment on Rappaport's status while the investigation continues. Students say they have a new teacher.
The seminar was held at a satellite campus about 10 miles from La Salle's main campus.