School bus hit by gunfire on Far South Side

A police evidence technician takes photos of damage from an apparent shooting incident in which an Our Lady of Guadalupe Catholic School bus was damaged this morning. (Antonio Perez/Chicago Tribune) (September 7, 2012)

Chicago police are trying to figure out who opened fire and struck a school bus carrying children on the Far South Side Friday.

Police responded to reports of criminal damage to a bus at Our Lady of Guadalupe School just before 8 a.m.  When they arrived, police found that a gunshot appeared to have entered one of the windows, traveled through a sear and exited through another window of the bus, according to Chicago Police News Affairs.

The incident occurred in the 10600 block of South Calhoun Avenue, about two miles away from the school, according to a spokesman for the Archdiocese of Chicago's Officer of Catholic Schools.

Authorities said the bus was picking up children in the South Deering neighborhood when it was struck.

Neither the driver nor any of the approximately 25 students on the bus at the time were injured, police said