In the incident in Beslan in North Ossetia, Russia, at least 32 armed individuals stormed a school and took more than 1,000 hostages, majority of them children. Over 330 people, mostly children, were killed in the assault.
About 500 students and teachers were believed to be inside the school when the attack started.
Mushtaq Ghani, provincial information minister, said the militants entered through a graveyard which is adjacent to the school.
The school is close to Saint Mary High School which has also been under threat since the last couple of days.
A heavy contingent of police and security forces have blocked the roads leading to the school, taking control of the entire area.