Police search for clues to deadly shooting at Oregon elementary school

Schools closed after one teacher and three children killed, and child and teacher hospitalized with critical injuries

Police are investigating a deadly shooting at an elementary school in Bend, Oregon, where a 16-year-old opened fire on Thursday, killing three children and a teacher, before being shot dead by an armed bystander.

Authorities in Oregon said that the three children killed at Silver Rail elementary school were aged five, eight and 11, and that a seven-year-old child and a 54-year-old teacher were also hospitalized with critical injuries.