A six-year-old boy will not face any criminal charges for shooting his teacher at a Virginia elementary school, prosecutors have said.

Teacher Abigail Zwerner was shot and injured on 6 January at Richneck Elementary School in Newport News, and the shocking incident led to the resignation of the school’s superintendent and an assistant principal.

Newport News Commonwealth’s Attorney Howard Gwynn told NBC News that his office would not bring charges against the youngster and said that the “prospect that a 6-year-old can stand trial is problematic.”