The aftermath of a school shooting in Oregon, in photos

Authorities say a 16-year-old opened fire at an elementary school in Bend, Oregon, killing three children and a teacher. He was shot by a person at the scene who pursued him into the school. Bend Police Chief Mike Krantz says authorities found the suspect dead inside the school minutes after the shooting Thursday was first reported. Krantz says the three children killed were aged 5, 8 and 11. A 7-year-old child and a teacher were injured and taken to a hospital in critical condition. Police say the attacker forced his way into the school by shooting at locked doors. A Bend police spokesperson says he was shot and went down inside the school shortly after officers arrived.

A 16-year-old opened fire at an elementary school in Bend, Oregon, killing three children and a teacher before he was shot by a person at the scene who pursued him into the school. That's according to the chief of police. Authorities say the three children killed were aged 5, 8 and 11. A 7-year-old child, 7, and a 54-year-old teacher were injured and taken to the hospital in critical condition. Police identified the shooter as a Bend resident. But they said they did not know if the shooter knew anyone at the school or whether he had attended.