The Philippines Red Cross said it was alerted to the incident at 14:00 local time (06:00 GMT) and had dispatched an ambulance with four paramedics to provide life-saving assistance.Police are at the site investigating the shooting, local media reported.Gun crime is not uncommon in the Philippines, which has one of the highest rates of gun ownership in the region. Broadly speaking, school shootings are rare, but today's incident marks the third deadly campus shooting in the last four months.In June, three students were killed and more were injured after their peers opened fire at a high school in central Philippines. Investigators believed the deadly shooting had been motivated by a "grudge" over bullying.In August, a student at a Catholic junior high school in the southern Philippines shot dead a fellow student and later took his own life. In this case, the suspect had fired at the teacher, but missed, then moved to another classroom and shot a student, who later died.Following the shooting on Friday, Reynaldo Tamayo, the South Cotabato governor, urged adult gun owners to "be responsible in storing firearms" and ensuring that minors do not get access to them."We cannot expect a handful of security personnel to monitor thousands of students. We need to work together because otherwise this will be very difficult for us to address," he told Reuters.