Serbia has deployed over 2,000 police officers in schools, for security after the shooting attack that happened few days.

After Monday, with the exception of the school where the incident happened last week, all students in Serbia are returning to their classes.

Police officers are doing their job in all 1,800 schools in the country since the early hours of the morning, when the government’s measures came into force.

Agents will be tasked with patrolling around and inside educational institutions.

The government’s decision came after a 13-year-old boy shot with an arm fire on his classmates at a Belgrade school, killing seven girls, a boy and a security guard.

A day later, the country experienced again because of a 20-year-old man who opened fire in two villages in central Serbia, killing 8 people.