Over a dozen men have been charged with sex crimes in Australia following an American FBI investigation that proved fatal for two agents. 

Officials announced Tuesday that 19 men had been arrested and charged with a combined 138 offenses in connection to an international pedophile ring.

"We will allege that these men were members of a technologically sophisticated online child abuse network that was operating across the country," Australian Federal Police Commander Helen Schneider told news outlets.

"We are proud of our longstanding relationship with the Australian Federal Police resulting in 19 Australian men facing criminal prosecution as a result of our collaborative investigation," FBI Legal Attaché Nitiana Mann said.