SAN PEDRO, Calif.–A bullet fired near San Pedro High School ricocheted off a wall and lodged in the leg of a 15-year-old girl today.

Police reportedly picked up a suspect in the shooting at 1001 W. 15th St. shortly after it occurred about 2:45 p.m.

The roughly 3,400 students at the school–the campus includes a middle school and high school–were held in classrooms until about 4 p.m.

Los Angeles Unified School District spokeswoman Susan Cox said the shot was believed to have been fired from off campus.

The girl, whose name was withheld, was not believed to be seriously wounded.