A police officer died Friday in an attack that prompted a massive law enforcement response to one of the nation’s most prominent public health institutions.

Police in Atlanta say the suspect is dead and there is no ongoing threat after reports of an active shooter near Emory University and the CDC headquarters.

A police officer is dead, and the alleged gunman was killed, during a shooting Friday afternoon near the U.S. Centers for Disease Control and Prevention (CDC) campus in Atlanta, as nearby Emory University told students to shelter in place and activated its emergency protocols.