Three people were shot on the main campus of Tennessee State University in Nashville late Thursday night, authorities said.
The victims have been transported to the hospital.
One person was in critical condition, the Tennessean newspaper reported; students might have been involved.
The Second Amendment to the US Constitution guarantees the right of US citizens to keep and bear arms. At the same time, the United States has been witnessing a growing number of mass shooting incidents over the past year, which prompted calls by some for greater gun controls.
President Barack Obama has previously called on Congress to change the country’s gun laws, and urged Americans to pay more attention to presidential candidates’ positions on gun control.
Opponents of the proposed measures claim there are enough laws on the books regulating gun purchases, and those laws should be enforced rather than more restrictions passed that may violate the rights of law-abiding gun owners.