(MEMPHIS, TN) -- Police say a student has been shot in a cafeteria at a Memphis high school, and a suspect is in custody.
Police spokeswoman Monique Martin says the student was shot Monday morning at Mitchell High School and was believed to be in critical condition.
The shooting stemmed from an unspecified argument the two students had "in the community" over the weekend, principal Daniel Ware said.
"He walked up to him, shot him, and made a statement to the coach that 'It's over now,'" Ware said. The student handed the gun to the coach and made no attempt to flee.
Martin tells CNN that the injured student has at least two gunshot wounds and is a male in the senior class.
A witness inside the school reported hearing three shots, and said the victim was struck in the neck and the leg.
Mitchell High School is currently on lockdown. School officials are allowing students to leave the school if they are accompanied by a parent.
Memphis City Schools Interim Superintendent Dan Ward said a metal detector check was not held at Hamilton High School on Monday morning.
"We are saddened by the young man that got shot," Ward said. "We are also saddened by the young man who did the shooting."
The shooting happened one week to the day after a similar incident at Hamilton High School, where a student was shot in the leg.
"We don't expect to continue to have this," Ward said. "We're going to do what we have to do to keep our students safe."
Memphis City Schools Executive Director of Communications Rita Cooper released the following statement shortly after the shooting:
"Memphis City Schools is deeply troubled to have learned that an unfortunate incident took place this morning at Mitchell High School. A student was shot by a classmate in the cafeteria during a physical education class that was being held in that area.
The student has been taken to the hospital and is being evaluated at this time. Our thoughts and prayers remain with this student and his family.
The suspect, who is also a student at Mitchell High, is in police custody.
Please understand that this incident involved two students and that the school is currently on lockdown.
Parents of Mitchell High students have been notified of the incident via the district's ParentLink communication system. We will provide more details as soon as they become available."