A construction worker was shot with a BB gun Saturday while working on at a Franklin Street student housing unit near the University of North Carolina at Chapel Hill campus.

A crew of workers were on scaffolding five floors up of West Granville Tower, 123 W. Franklin St., when someone shot at them from a window. The worker was hit in the ear. His injury was not serious, police said.

Chapel Hill police were investigating the incident to identify which room the BB came from and who fired the shot. The person responsible could face assault charges, a police spokesman said.

The privately-owned Granville Towers serves as an off-campus residence facility for UNC students.