A Ukrainian man has been arrested for allegedly running a $1 billion piracy site
Artem Vaulin, 30, is accused of being the owner and operator of the illegal file-sharing site, which went live in 2008.
Vaulin has been accused of distributing over $1 billion (£755 million) of pirated content over the last eight years, including well-known films and popular music.
Available in 28 languages, Kickass Torrents grew into a business with a net worth of $54 million (£40.7 million).
Vaulin was arrested by US authorities in Poland on Wednesday because a server for Kickass Torrents was based in Chicago. He is facing charges of money laundering and infringing copyright. The US is seeking his extradition.
In a Department of Justice press release, US assistant attorney general Leslie Caldwell said:
US attorney Zachary Fardon added: