The United States Embassy in Cambodia has fired 32 people after they were allegedly caught sharing pornographic material in a nonofficial chat group, several sources familiar with the matter said on Friday.

Four sources told Reuters that pornographic videos and photographs, including some featuring people under the age of 18, were shared in a Facebook Messenger chat group.

Some of the images were seen by the wife of an embassy worker who reported the incident to an official at the embassy. The matter was then forwarded to the Federal Bureau of Investigation (FBI), the sources said.