(CNN) -- Five Western Kentucky University students were taken into custody Wednesday for questioning, a few hours after the campus went under lockdown amid reports of altercations and possible shootings.
Officials are awaiting confirmation of whether shots were fired Wednesday at Western Kentucky University.
Two altercations on Wednesday that led to the lockdown were related, but no shots were fired, university Vice President Howard Bailey said at an afternoon news conference.
The lockdown was lifted, but classes were canceled for the rest of the day.
The students were not arrested but were being questioned and "were less than cooperative," Bailey said. None of them had previous problems at the university, he said.
The altercations started Saturday night outside a social event held by the support group Black Men at Western and continued Wednesday, Bailey said. No members of Black Men at Western were involved in the problems, he said.
One student suffered minor injuries Wednesday when he tried to break up one of the fights, Bailey said.
Police first received a report of an altercation involving weapons at the South Campus Building, at least a mile away from the main Bowling Green campus, said Robbin Taylor, the school's vice president for public affairs.
Shortly afterward, a second report was received of shots fired at Pearce Ford Tower, the university's largest residence hall, on the main campus, she said.
Authorities believe the reports stem from a single altercation that began at the South Campus Building and moved to the residence hall, Taylor said.
WKU police, Bowling Green police and Kentucky State Police were on the scene, Taylor said.