() A high school student is dead in Arizona, and another is in police custody after a classroom fight escalated Tuesday, according to Phoenix police.

A school safety officer responded to reports of an assault in a classroom at Maryvale High School just before 11 a.m.

Authorities said two students were involved the suspect, who was detained with injuries, and a second student “suffering from multiple stab wounds.”

The second teen later died at the hospital, police said. School officials have called the incident a “senseless tragedy.”

“As a mother myself, I am grieving for the mother, the sibling, the entire family and friends,” said Superintendent Thea Andrade during a Wednesday news briefing.

Investigators have asked that anyone with information about the incident contact the Phoenix Police Department.