Detective Chief Inspector Peter Doyle, senior investigating officer, said:
“Today’s outcome ensures that the three people responsible have been brought to justice.
“The safeguarding of children has been the primary objective for the investigation team and the outcome of this investigation has been achieved through a multi agency approach at an international level.
“Two very young children have been removed from this abuse and given a future that would otherwise have been denied them.
“The investigation has been extremely complex and challenging with key information and evidence being identified from witnesses worldwide.
“A significant amount of electronic data has been retrieved from computers and web based storage which has provided crucial evidence to support the case.
“South Wales Police has worked in partnership with Interpol, other police forces, National Crime Agency’s CEOP command, local authorities in England and Wales, the Department of Homeland Security in the USA and the NSPCC.
“Today’s outcome does not mark the end of our investigations and we will work tirelessly to identify any other victims or witnesses and seek the justice they deserve.
“Above all this investigation has been focussed on the protection of children and my thoughts today are with those victims
“We encourage anyone who has been affected by this case or other cases of child abuse to contact South Wales Police on 029 20634184 or the NSPCC on 0808 800 5000.”