Two teenage boys were in custody Wednesday after a gun was fired in the lobby of the Boston Public School headquarters in Roxbury, police confirmed. No one was injured.

Boston Police were called to 2300 Washington St. at 9:20 a.m. after the shot was heard during a scuffle between the two boys in the upper lobby of the school administration building, officials said.

The incident occurred when the argument between the teens turned physical, police department spokeswoman Rachel McGuire said. During the confrontation, one of the juveniles flashed a gun.

"A struggle over the firearm ensued, and it fired," McGuire said. "Officers were able to secure the victim, suspect and the firearm."

An investigation into the shooting continues.