The University of Miami was locked down for about a hour Friday afternoon because of people cruising the campus firing a BB gun, the Miami Herald reports.

   The campus reopened at 3:37 p.m. when police apprehended four people.

   Nobody was hurt, and there apparently was no panic on campus, though reporters found students who wondered why the campus would close over a seemingly minor incident. “I’m sure it was nothing major, if it was a BB gun,” one said.