A student was stabbed to death and his alleged attacker was hospitalized after the two teen boys got into an argument inside an Arizona high school classroom just two weeks into the school year — sending students and their parents into panic mode.

A student was killed and another was hurt in a stabbing at an Arizona high school, according to officials. The Arizona Department of Education said the student, who was not identified, was stabbed to death on Tuesday at Maryvale High School in Phoenix.