A shooter killed at least eight people and injured 13 in a drive-by attack near the town of Mladenovac, south of Belgrade, on Thursday night, according to state television. The shooter fired at random at people before fleeing the scene. Police are currently searching for a 21-year-old suspect.

This attack comes a day after a 13-year-old boy killed eight fellow students and a school guard in a rampage at a school in Belgrade, using his father's guns. Such mass killings are rare in Serbia, a country with a history of violence and armed conflict. The last mass shooting before this week occurred in 2013.

Serbian Interior Minister Bratislav Gasic called Thursday's shooting "a terrorist act." The tragedy has sparked a debate about the general state of the nation, and authorities have moved to boost gun control, urging citizens to lock up their guns and keep them away from children.

Following the school shooting in Belgrade that left nine dead and several injured, Serbian authorities have announced a three-day mourning period starting on Friday. The attacker, a 13-year-old boy, had taken his father’s guns from a safe and carried out the attack after a month of planning.

A girl who was shot in the head remains in critical condition, while a boy is in serious condition with spinal injuries. The tragedy has sparked debates about the general state of the nation, gun control, and the crisis in the school system.

To assist people dealing with the aftermath, authorities have set up a helpline, and hundreds of people have donated blood for the wounded victims. Meanwhile, Serbian teachers' unions have announced protests and strikes to demand changes in the education system.

The shooting has prompted a nationwide discussion on gun control and mental health, with many calling for stricter regulations and greater access to psychological support for young people.

Serbian President Aleksandar Vucic visited the school on Wednesday and declared a day of national mourning.

"We cannot comprehend the evil that occurred in this school today," he said. "The entire state is in shock."

The incident has also sparked debate about the state of Serbia's education system, with some blaming a lack of resources and support for teachers and students.

The school shooting and the drive-by attack near Belgrade have shaken Serbia, a country that has struggled with high levels of violence in the past, including during the Balkan wars of the 1990s.

Authorities have vowed to investigate both incidents and bring those responsible to justice.

The tragic school shooting in Belgrade has prompted reflection and debate among Serbian residents. Many attendees at the vigil near the school expressed a sense of collective guilt and responsibility for allowing such incidents to occur.

Gun culture is widespread in Serbia and the Balkans, with the region having some of the highest numbers of guns per capita in Europe. Experts have warned about the dangers posed by this situation, given the country's history of instability and deep political divisions.

They argue that eliminating negative models and creating a different system of values is crucial for preventing such violent outbursts. There is also concern that the glorification of convicted war criminals and violence against minority groups in Serbia could contribute to a culture of violence.