A former student of a private school here on Tuesday barged into his alma mater brandishing a gun, terrorising staff and students, following which police took him into custody.According to the school staff, he fired a couple of rounds after roaming inside the institution. No one was injured.

A former student, Jagan, went to the Vivekodayam school at Thrissur and took out a gun from his bag after entering the staff room and later went to various classrooms, terrorising students and staff.