Deadly School Shooting in Serbia Leaves 9 Dead.

A seventh-grade student opened fire in his school in Belgrade, Serbia, killing eight children and a security guard, and injuring six children and a teacher. The shooter is believed to have used his father's gun and was detained by police. The motive is under investigation, and the shooter's father was also taken into custody. Schools in the capital have closed, and three days of national mourning have been announced. The incident highlights the importance of mental health awareness and support, particularly in the education system, according to UNICEF.