The victims included children aged 5, 8, and 11, while a 7-year-old child and another teacher remain critically injured (Representational image)

A deadly shooting at an elementary school in Bend, Oregon, claimed the lives of three children and a teacher on Thursday, leaving two others critically injured.

Police said the 16-year-old attacker broke through locked doors to enter Silver Rail Elementary School before an armed bystander confronted and killed him.

The victims included children aged 5, 8 and 11, while a 7-year-old child and another teacher remain critically injured. Authorities responded within minutes of receiving emergency calls.

Officials said the suspect resided in Bend but have not publicly identified him.

The tragedy renewed concerns about school safety and gun violence across the United States.