In the US city of Torrance, California, a man attacked school staff with a knife. This was reported on 360.ru.

According to US police, this former student stabbed three school staff members, then attempted to attack the fourth person and then fled. Two people had to be hospitalized, one person was treated by a doctor on the spot.
The attacker was arrested by US police. He did not resist when arrested. The former student admitted to placing two bombs in advance – at the intersection of 208th Street and Amapola Avenue. Commandos immediately went to the designated areas and found explosive devices. All were successfully disabled. Police are investigating the incident and determining the cause of the attack on the school.
Previously in Austria, a stranger opened fire at a school. At least 11 people died after the tragedy. A teenager who considered himself a victim of bullying opened fire on two classrooms. He was later found dead in the school restroom.