In the United States, three children and a teacher were killed in a shooting at a primary school in the state of Oregon.
Police said a 16-year-old attacker forced his way into Silver Rail Elementary School in Bend on Thursday afternoon.
The children killed in the incident were aged five, eight and eleven. The attacker was also killed after a community member confronted him inside the school.
Oregon Governor Tina Kotek praised the community members for intervening and helping prevent further loss of life.