The Spanish police have arrested one of the most wanted by the FBI during a raid in Madrid.
The man, who is said to originate from New Zealandis sought in the US on charges of sexual exploitation, sexual assault and indecent images of children.
Spanish police say the man, identified only as MJP, is also wanted on charges of illicit gains.
It is said that he made more than $17 million through his alleged crimes.
The man was arrested at a Madrid hotel after registering with one of his false identities.
It followed a joint operation between the FBI, US Marshals and INTERPOL in Spain.
On Sunday, the Spanish National Police tweeted a video of the arrest.
Prosecutors in the US allege the man was involved in the production of pornography, the recruitment of minors and young women through deception and made more than $17 million in the process.
It is alleged that he paid other women to “foster” his victims and convince them that the recorded material would not be published.
According to the testimonies of the alleged victims, on occasions they were held against their will at the recording locations, and they were not allowed to leave until they complied with the demands of the producers.
In some cases, they were forced to engage in sexual practices to which they had previously expressly refused, it is alleged.
The content eventually ended up on pornographic-themed websites, prosecutors say.
In September, US authorities issued an international arrest warrant and the FBI listed him among its 10 “most wanted.”