A lone gunman shot and injured four people before killing himself at a hospital building in Reno, Nev.

Reno police say the man entered the Center for Advanced Medicine at Renown Regional Medical Center at about 2:45 p.m. with at least one firearm and began shooting.

Reno police Lt. Tom Robinson says the shooter turned the gun on himself before 3 p.m.

Robinson says one of the shooting victims is in surgery. Information isn't immediately available on the condition of the others.